Interactive periodic table covering every chemical element from hydrogen (atomic number 1) to oganesson (atomic number 118). Each element entry includes symbol, atomic number, atomic mass, group, period, classification, electron configuration, melting and boiling points in kelvin, and etymology in English and French. Use the visual periodic table above for crystal lattice and atomic orbital diagrams.
Hydrogen, symbol H, atomic number 1, atomic mass 1.008. Classified as a nonmetal in group 1, period 1. Electron configuration 1s¹. Melting point 13.99 K, boiling point 20.27 K. Etymology: From Greek hydōr and gennein.
Hydrogène (H), élément numéro 1, masse atomique 1.008. Du grec hydōr et gennein.
Helium, symbol He, atomic number 2, atomic mass 4.0026. Classified as a noble gas in group 18, period 1. Electron configuration 1s². Melting point 0.95 K, boiling point 4.22 K. Etymology: From Greek hēlios.
Hélium (He), élément numéro 2, masse atomique 4.0026. Du grec hēlios.
Lithium, symbol Li, atomic number 3, atomic mass 6.94. Classified as a alkali metal in group 1, period 2. Electron configuration [He] 2s¹. Melting point 453.65 K, boiling point 1603.00 K. Etymology: From Greek lithos.
Lithium (Li), élément numéro 3, masse atomique 6.94. Du grec lithos.
Beryllium, symbol Be, atomic number 4, atomic mass 9.0122. Classified as a alkaline earth metal in group 2, period 2. Electron configuration [He] 2s². Melting point 1560.00 K, boiling point 2742.00 K. Etymology: From beryl.
Béryllium (Be), élément numéro 4, masse atomique 9.0122. De béryl.
Boron, symbol B, atomic number 5, atomic mass 10.81. Classified as a metalloid in group 13, period 2. Electron configuration [He] 2s² 2p¹. Melting point 2349.00 K, boiling point 4200.00 K. Etymology: From Arabic buraq.
Bore (B), élément numéro 5, masse atomique 10.81. De l'arabe buraq.
Carbon, symbol C, atomic number 6, atomic mass 12.011. Classified as a nonmetal in group 14, period 2. Electron configuration [He] 2s² 2p². Melting point 3823.00 K, boiling point 4098.00 K. Etymology: From Latin carbo.
Carbone (C), élément numéro 6, masse atomique 12.011. Du latin carbo.
Nitrogen, symbol N, atomic number 7, atomic mass 14.007. Classified as a nonmetal in group 15, period 2. Electron configuration [He] 2s² 2p³. Melting point 63.15 K, boiling point 77.36 K. Etymology: Greek a-zōē.
Azote (N), élément numéro 7, masse atomique 14.007. Du grec a-zōē.
Oxygen, symbol O, atomic number 8, atomic mass 15.999. Classified as a nonmetal in group 16, period 2. Electron configuration [He] 2s² 2p⁴. Melting point 54.36 K, boiling point 90.20 K. Etymology: From Greek oxys.
Oxygène (O), élément numéro 8, masse atomique 15.999. Du grec oxys.
Fluorine, symbol F, atomic number 9, atomic mass 18.998. Classified as a halogen in group 17, period 2. Electron configuration [He] 2s² 2p⁵. Melting point 53.48 K, boiling point 85.03 K. Etymology: From Latin fluere.
Fluor (F), élément numéro 9, masse atomique 18.998. Du latin fluere.
Neon, symbol Ne, atomic number 10, atomic mass 20.18. Classified as a noble gas in group 18, period 2. Electron configuration [He] 2s² 2p⁶. Melting point 24.56 K, boiling point 27.07 K. Etymology: From Greek neos.
Néon (Ne), élément numéro 10, masse atomique 20.18. Du grec neos.
Sodium, symbol Na, atomic number 11, atomic mass 22.99. Classified as a alkali metal in group 1, period 3. Electron configuration [Ne] 3s¹. Melting point 370.87 K, boiling point 1156.00 K. Etymology: From English soda.
Sodium (Na), élément numéro 11, masse atomique 22.99. De l'arabe suda.
Magnesium, symbol Mg, atomic number 12, atomic mass 24.305. Classified as a alkaline earth metal in group 2, period 3. Electron configuration [Ne] 3s². Melting point 923.00 K, boiling point 1363.00 K. Etymology: From Magnesia.
Magnésium (Mg), élément numéro 12, masse atomique 24.305. De Magnésie.
Aluminium, symbol Al, atomic number 13, atomic mass 26.982. Classified as a post-transition metal in group 13, period 3. Electron configuration [Ne] 3s² 3p¹. Melting point 933.47 K, boiling point 2792.00 K. Etymology: From Latin alumen.
Aluminium (Al), élément numéro 13, masse atomique 26.982. Du latin alumen.
Silicon, symbol Si, atomic number 14, atomic mass 28.085. Classified as a metalloid in group 14, period 3. Electron configuration [Ne] 3s² 3p². Melting point 1687.00 K, boiling point 3538.00 K. Etymology: From Latin silex.
Silicium (Si), élément numéro 14, masse atomique 28.085. Du latin silex.
Phosphorus, symbol P, atomic number 15, atomic mass 30.974. Classified as a nonmetal in group 15, period 3. Electron configuration [Ne] 3s² 3p³. Melting point 317.30 K, boiling point 553.65 K. Etymology: From Greek phōsphoros.
Phosphore (P), élément numéro 15, masse atomique 30.974. Du grec phōsphoros.
Sulfur, symbol S, atomic number 16, atomic mass 32.06. Classified as a nonmetal in group 16, period 3. Electron configuration [Ne] 3s² 3p⁴. Melting point 388.36 K, boiling point 717.87 K. Etymology: From Sanskrit sulvere.
Soufre (S), élément numéro 16, masse atomique 32.06. Du sanskrit sulvere.
Chlorine, symbol Cl, atomic number 17, atomic mass 35.45. Classified as a halogen in group 17, period 3. Electron configuration [Ne] 3s² 3p⁵. Melting point 171.60 K, boiling point 239.11 K. Etymology: From Greek chlōros.
Chlore (Cl), élément numéro 17, masse atomique 35.45. Du grec chlōros.
Argon, symbol Ar, atomic number 18, atomic mass 39.948. Classified as a noble gas in group 18, period 3. Electron configuration [Ne] 3s² 3p⁶. Melting point 83.80 K, boiling point 87.30 K. Etymology: From Greek argos.
Argon (Ar), élément numéro 18, masse atomique 39.948. Du grec argos.
Potassium, symbol K, atomic number 19, atomic mass 39.098. Classified as a alkali metal in group 1, period 4. Electron configuration [Ar] 4s¹. Melting point 336.53 K, boiling point 1032.00 K. Etymology: From English potash.
Potassium (K), élément numéro 19, masse atomique 39.098. De potash.
Calcium, symbol Ca, atomic number 20, atomic mass 40.078. Classified as a alkaline earth metal in group 2, period 4. Electron configuration [Ar] 4s². Melting point 1115.00 K, boiling point 1757.00 K. Etymology: From Latin calx.
Calcium (Ca), élément numéro 20, masse atomique 40.078. Du latin calx.
Scandium, symbol Sc, atomic number 21, atomic mass 44.956. Classified as a transition metal in group 3, period 4. Electron configuration [Ar] 3d¹ 4s². Melting point 1814.00 K, boiling point 3109.00 K. Etymology: From Scandinavia.
Scandium (Sc), élément numéro 21, masse atomique 44.956. De Scandinavia.
Titanium, symbol Ti, atomic number 22, atomic mass 47.867. Classified as a transition metal in group 4, period 4. Electron configuration [Ar] 3d² 4s². Melting point 1941.00 K, boiling point 3560.00 K. Etymology: From Titans.
Titane (Ti), élément numéro 22, masse atomique 47.867. Des Titans.
Vanadium, symbol V, atomic number 23, atomic mass 50.942. Classified as a transition metal in group 5, period 4. Electron configuration [Ar] 3d³ 4s². Melting point 2183.00 K, boiling point 3680.00 K. Etymology: From Vanadis.
Vanadium (V), élément numéro 23, masse atomique 50.942. De Vanadis.
Chromium, symbol Cr, atomic number 24, atomic mass 51.996. Classified as a transition metal in group 6, period 4. Electron configuration [Ar] 3d⁵ 4s¹. Melting point 2180.00 K, boiling point 2944.00 K. Etymology: From Greek chrōma.
Chrome (Cr), élément numéro 24, masse atomique 51.996. Du grec chrōma.
Manganese, symbol Mn, atomic number 25, atomic mass 54.938. Classified as a transition metal in group 7, period 4. Electron configuration [Ar] 3d⁵ 4s². Melting point 1519.00 K, boiling point 2334.00 K. Etymology: From magnesia nigra.
Manganèse (Mn), élément numéro 25, masse atomique 54.938. De magnesia nigra.
Iron, symbol Fe, atomic number 26, atomic mass 55.845. Classified as a transition metal in group 8, period 4. Electron configuration [Ar] 3d⁶ 4s². Melting point 1811.00 K, boiling point 3134.00 K. Etymology: From Latin ferrum.
Fer (Fe), élément numéro 26, masse atomique 55.845. Du latin ferrum.
Cobalt, symbol Co, atomic number 27, atomic mass 58.933. Classified as a transition metal in group 9, period 4. Electron configuration [Ar] 3d⁷ 4s². Melting point 1768.00 K, boiling point 3200.00 K. Etymology: From kobold.
Cobalt (Co), élément numéro 27, masse atomique 58.933. De kobold.
Nickel, symbol Ni, atomic number 28, atomic mass 58.693. Classified as a transition metal in group 10, period 4. Electron configuration [Ar] 3d⁸ 4s². Melting point 1728.00 K, boiling point 3186.00 K. Etymology: From kupfernickel.
Nickel (Ni), élément numéro 28, masse atomique 58.693. De kupfernickel.
Copper, symbol Cu, atomic number 29, atomic mass 63.546. Classified as a transition metal in group 11, period 4. Electron configuration [Ar] 3d¹⁰ 4s¹. Melting point 1357.77 K, boiling point 2835.00 K. Etymology: From Latin cuprum.
Cuivre (Cu), élément numéro 29, masse atomique 63.546. Du latin cuprum.
Zinc, symbol Zn, atomic number 30, atomic mass 65.38. Classified as a transition metal in group 12, period 4. Electron configuration [Ar] 3d¹⁰ 4s². Melting point 692.88 K, boiling point 1180.00 K. Etymology: From Zink.
Zinc (Zn), élément numéro 30, masse atomique 65.38. De Zink.
Gallium, symbol Ga, atomic number 31, atomic mass 69.723. Classified as a post-transition metal in group 13, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p¹. Melting point 302.91 K, boiling point 2477.00 K. Etymology: From Gallia.
Gallium (Ga), élément numéro 31, masse atomique 69.723. De Gallia.
Germanium, symbol Ge, atomic number 32, atomic mass 72.63. Classified as a metalloid in group 14, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p². Melting point 1211.40 K, boiling point 3106.00 K. Etymology: From Germania.
Germanium (Ge), élément numéro 32, masse atomique 72.63. De Germania.
Arsenic, symbol As, atomic number 33, atomic mass 74.922. Classified as a metalloid in group 15, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p³. Melting point 1090.00 K, boiling point 887.00 K. Etymology: From Greek arsenikos.
Arsenic (As), élément numéro 33, masse atomique 74.922. Du grec arsenikos.
Selenium, symbol Se, atomic number 34, atomic mass 78.971. Classified as a nonmetal in group 16, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p⁴. Melting point 494.00 K, boiling point 958.00 K. Etymology: From Greek selēnē.
Sélénium (Se), élément numéro 34, masse atomique 78.971. Du grec selēnē.
Bromine, symbol Br, atomic number 35, atomic mass 79.904. Classified as a halogen in group 17, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p⁵. Melting point 265.80 K, boiling point 332.00 K. Etymology: From Greek brōmos.
Brome (Br), élément numéro 35, masse atomique 79.904. Du grec brōmos.
Krypton, symbol Kr, atomic number 36, atomic mass 83.798. Classified as a noble gas in group 18, period 4. Electron configuration [Ar] 3d¹⁰ 4s² 4p⁶. Melting point 115.79 K, boiling point 119.93 K. Etymology: From Greek kryptos.
Krypton (Kr), élément numéro 36, masse atomique 83.798. Du grec kryptos.
Rubidium, symbol Rb, atomic number 37, atomic mass 85.468. Classified as a alkali metal in group 1, period 5. Electron configuration [Kr] 5s¹. Melting point 312.46 K, boiling point 961.00 K. Etymology: From Latin rubidus.
Rubidium (Rb), élément numéro 37, masse atomique 85.468. Du latin rubidus.
Strontium, symbol Sr, atomic number 38, atomic mass 87.62. Classified as a alkaline earth metal in group 2, period 5. Electron configuration [Kr] 5s². Melting point 1050.00 K, boiling point 1655.00 K. Etymology: From Strontian.
Strontium (Sr), élément numéro 38, masse atomique 87.62. De Strontian.
Yttrium, symbol Y, atomic number 39, atomic mass 88.906. Classified as a transition metal in group 3, period 5. Electron configuration [Kr] 4d¹ 5s². Melting point 1799.00 K, boiling point 3609.00 K. Etymology: From Ytterby.
Yttrium (Y), élément numéro 39, masse atomique 88.906. D'Ytterby.
Zirconium, symbol Zr, atomic number 40, atomic mass 91.224. Classified as a transition metal in group 4, period 5. Electron configuration [Kr] 4d² 5s². Melting point 2128.00 K, boiling point 4682.00 K. Etymology: From zircon.
Zirconium (Zr), élément numéro 40, masse atomique 91.224. De zircon.
Niobium, symbol Nb, atomic number 41, atomic mass 92.906. Classified as a transition metal in group 5, period 5. Electron configuration [Kr] 4d⁴ 5s¹. Melting point 2750.00 K, boiling point 5017.00 K. Etymology: From Niobe.
Niobium (Nb), élément numéro 41, masse atomique 92.906. De Niobé.
Molybdenum, symbol Mo, atomic number 42, atomic mass 95.95. Classified as a transition metal in group 6, period 5. Electron configuration [Kr] 4d⁵ 5s¹. Melting point 2896.00 K, boiling point 4912.00 K. Etymology: From Greek molybdos.
Molybdène (Mo), élément numéro 42, masse atomique 95.95. Du grec molybdos.
Technetium, symbol Tc, atomic number 43, atomic mass 98.0. Classified as a transition metal in group 7, period 5. Electron configuration [Kr] 4d⁵ 5s². Melting point 2430.00 K, boiling point 4538.00 K. Etymology: From Greek technētos.
Technétium (Tc), élément numéro 43, masse atomique 98.0. Du grec technētos.
Ruthenium, symbol Ru, atomic number 44, atomic mass 101.07. Classified as a transition metal in group 8, period 5. Electron configuration [Kr] 4d⁷ 5s¹. Melting point 2607.00 K, boiling point 4423.00 K. Etymology: From Ruthenia.
Ruthénium (Ru), élément numéro 44, masse atomique 101.07. De Ruthenia.
Rhodium, symbol Rh, atomic number 45, atomic mass 102.91. Classified as a transition metal in group 9, period 5. Electron configuration [Kr] 4d⁸ 5s¹. Melting point 2237.00 K, boiling point 3968.00 K. Etymology: From Greek rhodon.
Rhodium (Rh), élément numéro 45, masse atomique 102.91. Du grec rhodon.
Palladium, symbol Pd, atomic number 46, atomic mass 106.42. Classified as a transition metal in group 10, period 5. Electron configuration [Kr] 4d¹⁰. Melting point 1828.05 K, boiling point 3236.00 K. Etymology: From asteroid Pallas.
Palladium (Pd), élément numéro 46, masse atomique 106.42. De l'astéroïde Pallas.
Silver, symbol Ag, atomic number 47, atomic mass 107.87. Classified as a transition metal in group 11, period 5. Electron configuration [Kr] 4d¹⁰ 5s¹. Melting point 1234.93 K, boiling point 2435.00 K. Etymology: From Latin argentum.
Argent (Ag), élément numéro 47, masse atomique 107.87. Du latin argentum.
Cadmium, symbol Cd, atomic number 48, atomic mass 112.41. Classified as a transition metal in group 12, period 5. Electron configuration [Kr] 4d¹⁰ 5s². Melting point 594.22 K, boiling point 1040.00 K. Etymology: From Greek kadmeia.
Cadmium (Cd), élément numéro 48, masse atomique 112.41. Du grec kadmeia.
Indium, symbol In, atomic number 49, atomic mass 114.82. Classified as a post-transition metal in group 13, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p¹. Melting point 429.75 K, boiling point 2345.00 K. Etymology: From indigo.
Indium (In), élément numéro 49, masse atomique 114.82. De l'indigo.
Tin, symbol Sn, atomic number 50, atomic mass 118.71. Classified as a post-transition metal in group 14, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p². Melting point 505.08 K, boiling point 2875.00 K. Etymology: From Latin stannum.
Étain (Sn), élément numéro 50, masse atomique 118.71. Du latin stannum.
Antimony, symbol Sb, atomic number 51, atomic mass 121.76. Classified as a metalloid in group 15, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p³. Melting point 903.78 K, boiling point 1860.00 K. Etymology: From Latin stibium.
Antimoine (Sb), élément numéro 51, masse atomique 121.76. Du latin stibium.
Tellurium, symbol Te, atomic number 52, atomic mass 127.6. Classified as a metalloid in group 16, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p⁴. Melting point 722.66 K, boiling point 1261.00 K. Etymology: From Latin tellus.
Tellure (Te), élément numéro 52, masse atomique 127.6. Du latin tellus.
Iodine, symbol I, atomic number 53, atomic mass 126.9. Classified as a halogen in group 17, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p⁵. Melting point 386.85 K, boiling point 457.40 K. Etymology: From Greek iōdēs.
Iode (I), élément numéro 53, masse atomique 126.9. Du grec iōdēs.
Xenon, symbol Xe, atomic number 54, atomic mass 131.29. Classified as a noble gas in group 18, period 5. Electron configuration [Kr] 4d¹⁰ 5s² 5p⁶. Melting point 161.40 K, boiling point 165.03 K. Etymology: From Greek xenos.
Xénon (Xe), élément numéro 54, masse atomique 131.29. Du grec xenos.
Caesium, symbol Cs, atomic number 55, atomic mass 132.91. Classified as a alkali metal in group 1, period 6. Electron configuration [Xe] 6s¹. Melting point 301.59 K, boiling point 944.00 K. Etymology: From Latin caesius.
Césium (Cs), élément numéro 55, masse atomique 132.91. Du latin caesius.
Barium, symbol Ba, atomic number 56, atomic mass 137.33. Classified as a alkaline earth metal in group 2, period 6. Electron configuration [Xe] 6s². Melting point 1000.00 K, boiling point 2170.00 K. Etymology: From Greek barys.
Baryum (Ba), élément numéro 56, masse atomique 137.33. Du grec barys.
Lanthanum, symbol La, atomic number 57, atomic mass 138.91. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 5d¹ 6s². Melting point 1193.00 K, boiling point 3737.00 K. Etymology: From Greek lanthanein.
Lanthane (La), élément numéro 57, masse atomique 138.91. Du grec lanthanein.
Cerium, symbol Ce, atomic number 58, atomic mass 140.12. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹ 5d¹ 6s². Melting point 1068.00 K, boiling point 3716.00 K. Etymology: From Ceres.
Cérium (Ce), élément numéro 58, masse atomique 140.12. De Cérès.
Praseodymium, symbol Pr, atomic number 59, atomic mass 140.91. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f³ 6s². Melting point 1208.00 K, boiling point 3793.00 K. Etymology: From Greek prasios didymos.
Praséodyme (Pr), élément numéro 59, masse atomique 140.91. Du grec prasios didymos.
Neodymium, symbol Nd, atomic number 60, atomic mass 144.24. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁴ 6s². Melting point 1297.00 K, boiling point 3347.00 K. Etymology: From Greek neos didymos.
Néodyme (Nd), élément numéro 60, masse atomique 144.24. Du grec neos didymos.
Promethium, symbol Pm, atomic number 61, atomic mass 145.0. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁵ 6s². Melting point 1315.00 K, boiling point 3273.00 K. Etymology: From Prometheus.
Prométhium (Pm), élément numéro 61, masse atomique 145.0. De Prométhée.
Samarium, symbol Sm, atomic number 62, atomic mass 150.36. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁶ 6s². Melting point 1345.00 K, boiling point 2067.00 K. Etymology: From samarskite.
Samarium (Sm), élément numéro 62, masse atomique 150.36. De la samarskite.
Europium, symbol Eu, atomic number 63, atomic mass 151.96. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁷ 6s². Melting point 1099.00 K, boiling point 1802.00 K. Etymology: From Europe.
Europium (Eu), élément numéro 63, masse atomique 151.96. De l'Europe.
Gadolinium, symbol Gd, atomic number 64, atomic mass 157.25. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁷ 5d¹ 6s². Melting point 1585.00 K, boiling point 3546.00 K. Etymology: From J. Gadolin.
Gadolinium (Gd), élément numéro 64, masse atomique 157.25. De J. Gadolin.
Terbium, symbol Tb, atomic number 65, atomic mass 158.93. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f⁹ 6s². Melting point 1629.00 K, boiling point 3503.00 K. Etymology: From Ytterby.
Terbium (Tb), élément numéro 65, masse atomique 158.93. D'Ytterby.
Dysprosium, symbol Dy, atomic number 66, atomic mass 162.5. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹⁰ 6s². Melting point 1680.00 K, boiling point 2840.00 K. Etymology: From Greek dysprositos.
Dysprosium (Dy), élément numéro 66, masse atomique 162.5. Du grec dysprositos.
Holmium, symbol Ho, atomic number 67, atomic mass 164.93. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹¹ 6s². Melting point 1734.00 K, boiling point 2993.00 K. Etymology: From Holmia.
Holmium (Ho), élément numéro 67, masse atomique 164.93. De Holmia.
Erbium, symbol Er, atomic number 68, atomic mass 167.26. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹² 6s². Melting point 1802.00 K, boiling point 3141.00 K. Etymology: From Ytterby.
Erbium (Er), élément numéro 68, masse atomique 167.26. D'Ytterby.
Thulium, symbol Tm, atomic number 69, atomic mass 168.93. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹³ 6s². Melting point 1818.00 K, boiling point 2223.00 K. Etymology: From Thule.
Thulium (Tm), élément numéro 69, masse atomique 168.93. De Thulé.
Ytterbium, symbol Yb, atomic number 70, atomic mass 173.05. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹⁴ 6s². Melting point 1097.00 K, boiling point 1469.00 K. Etymology: From Ytterby.
Ytterbium (Yb), élément numéro 70, masse atomique 173.05. D'Ytterby.
Lutetium, symbol Lu, atomic number 71, atomic mass 174.97. Classified as a lanthanide in group 3, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹ 6s². Melting point 1925.00 K, boiling point 3675.00 K. Etymology: From Lutetia.
Lutécium (Lu), élément numéro 71, masse atomique 174.97. De Lutetia.
Hafnium, symbol Hf, atomic number 72, atomic mass 178.49. Classified as a transition metal in group 4, period 6. Electron configuration [Xe] 4f¹⁴ 5d² 6s². Melting point 2506.00 K, boiling point 4876.00 K. Etymology: From Hafnia.
Hafnium (Hf), élément numéro 72, masse atomique 178.49. De Hafnia.
Tantalum, symbol Ta, atomic number 73, atomic mass 180.95. Classified as a transition metal in group 5, period 6. Electron configuration [Xe] 4f¹⁴ 5d³ 6s². Melting point 3290.00 K, boiling point 5731.00 K. Etymology: From Tantalus.
Tantale (Ta), élément numéro 73, masse atomique 180.95. De Tantale.
Tungsten, symbol W, atomic number 74, atomic mass 183.84. Classified as a transition metal in group 6, period 6. Electron configuration [Xe] 4f¹⁴ 5d⁴ 6s². Melting point 3695.00 K, boiling point 5828.00 K. Etymology: From Swedish tung sten.
Tungstène (W), élément numéro 74, masse atomique 183.84. Du suédois tung sten.
Rhenium, symbol Re, atomic number 75, atomic mass 186.21. Classified as a transition metal in group 7, period 6. Electron configuration [Xe] 4f¹⁴ 5d⁵ 6s². Melting point 3459.00 K, boiling point 5869.00 K. Etymology: From Rhine.
Rhénium (Re), élément numéro 75, masse atomique 186.21. Du Rhin.
Osmium, symbol Os, atomic number 76, atomic mass 190.23. Classified as a transition metal in group 8, period 6. Electron configuration [Xe] 4f¹⁴ 5d⁶ 6s². Melting point 3306.00 K, boiling point 5285.00 K. Etymology: From Greek osmē.
Osmium (Os), élément numéro 76, masse atomique 190.23. Du grec osmē.
Iridium, symbol Ir, atomic number 77, atomic mass 192.22. Classified as a transition metal in group 9, period 6. Electron configuration [Xe] 4f¹⁴ 5d⁷ 6s². Melting point 2719.00 K, boiling point 4701.00 K. Etymology: From Iris.
Iridium (Ir), élément numéro 77, masse atomique 192.22. D'Iris.
Platinum, symbol Pt, atomic number 78, atomic mass 195.08. Classified as a transition metal in group 10, period 6. Electron configuration [Xe] 4f¹⁴ 5d⁹ 6s¹. Melting point 2041.40 K, boiling point 4098.00 K. Etymology: From platina.
Platine (Pt), élément numéro 78, masse atomique 195.08. De platina.
Gold, symbol Au, atomic number 79, atomic mass 196.97. Classified as a transition metal in group 11, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s¹. Melting point 1337.33 K, boiling point 3129.00 K. Etymology: From Latin aurum.
Or (Au), élément numéro 79, masse atomique 196.97. Du latin aurum.
Mercury, symbol Hg, atomic number 80, atomic mass 200.59. Classified as a transition metal in group 12, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s². Melting point 234.32 K, boiling point 629.88 K. Etymology: From god Mercury.
Mercure (Hg), élément numéro 80, masse atomique 200.59. Du dieu Mercure.
Thallium, symbol Tl, atomic number 81, atomic mass 204.38. Classified as a post-transition metal in group 13, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹. Melting point 577.00 K, boiling point 1746.00 K. Etymology: From Greek thallos.
Thallium (Tl), élément numéro 81, masse atomique 204.38. Du grec thallos.
Lead, symbol Pb, atomic number 82, atomic mass 207.2. Classified as a post-transition metal in group 14, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p². Melting point 600.61 K, boiling point 2022.00 K. Etymology: From Latin plumbum.
Plomb (Pb), élément numéro 82, masse atomique 207.2. Du latin plumbum.
Bismuth, symbol Bi, atomic number 83, atomic mass 208.98. Classified as a post-transition metal in group 15, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³. Melting point 544.70 K, boiling point 1837.00 K. Etymology: From wismut.
Bismuth (Bi), élément numéro 83, masse atomique 208.98. De wismut.
Polonium, symbol Po, atomic number 84, atomic mass 209.0. Classified as a post-transition metal in group 16, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴. Melting point 527.00 K, boiling point 1235.00 K. Etymology: From Poland.
Polonium (Po), élément numéro 84, masse atomique 209.0. De la Pologne.
Astatine, symbol At, atomic number 85, atomic mass 210.0. Classified as a halogen in group 17, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵. Melting point 575.00 K, boiling point 610.00 K. Etymology: From Greek astatos.
Astate (At), élément numéro 85, masse atomique 210.0. Du grec astatos.
Radon, symbol Rn, atomic number 86, atomic mass 222.0. Classified as a noble gas in group 18, period 6. Electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶. Melting point 202.00 K, boiling point 211.30 K. Etymology: From radium.
Radon (Rn), élément numéro 86, masse atomique 222.0. Du radium.
Francium, symbol Fr, atomic number 87, atomic mass 223.0. Classified as a alkali metal in group 1, period 7. Electron configuration [Rn] 7s¹. Melting point 300.00 K, boiling point 950.00 K. Etymology: From France.
Francium (Fr), élément numéro 87, masse atomique 223.0. De la France.
Radium, symbol Ra, atomic number 88, atomic mass 226.0. Classified as a alkaline earth metal in group 2, period 7. Electron configuration [Rn] 7s². Melting point 973.00 K, boiling point 2010.00 K. Etymology: From Latin radius.
Radium (Ra), élément numéro 88, masse atomique 226.0. Du latin radius.
Actinium, symbol Ac, atomic number 89, atomic mass 227.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 6d¹ 7s². Melting point 1323.00 K, boiling point 3471.00 K. Etymology: From Greek aktis.
Actinium (Ac), élément numéro 89, masse atomique 227.0. Du grec aktis.
Thorium, symbol Th, atomic number 90, atomic mass 232.04. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 6d² 7s². Melting point 2115.00 K, boiling point 5061.00 K. Etymology: From Thor.
Thorium (Th), élément numéro 90, masse atomique 232.04. De Thor.
Protactinium, symbol Pa, atomic number 91, atomic mass 231.04. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f² 6d¹ 7s². Melting point 1841.00 K, boiling point 4300.00 K. Etymology: Precursor of actinium.
Protactinium (Pa), élément numéro 91, masse atomique 231.04. Précurseur de l'actinium.
Uranium, symbol U, atomic number 92, atomic mass 238.03. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f³ 6d¹ 7s². Melting point 1405.30 K, boiling point 4404.00 K. Etymology: From Uranus.
Uranium (U), élément numéro 92, masse atomique 238.03. D'Uranus.
Neptunium, symbol Np, atomic number 93, atomic mass 237.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f⁴ 6d¹ 7s². Melting point 917.00 K, boiling point 4273.00 K. Etymology: From Neptune.
Neptunium (Np), élément numéro 93, masse atomique 237.0. De Neptune.
Plutonium, symbol Pu, atomic number 94, atomic mass 244.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f⁶ 7s². Melting point 912.50 K, boiling point 3501.00 K. Etymology: From Pluto.
Plutonium (Pu), élément numéro 94, masse atomique 244.0. De Pluton.
Americium, symbol Am, atomic number 95, atomic mass 243.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f⁷ 7s². Melting point 1449.00 K, boiling point 2880.00 K. Etymology: From Americas.
Américium (Am), élément numéro 95, masse atomique 243.0. Des Amériques.
Curium, symbol Cm, atomic number 96, atomic mass 247.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f⁷ 6d¹ 7s². Melting point 1613.00 K, boiling point 3383.00 K. Etymology: From Curies.
Curium (Cm), élément numéro 96, masse atomique 247.0. Des Curie.
Berkelium, symbol Bk, atomic number 97, atomic mass 247.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f⁹ 7s². Melting point 1259.00 K, boiling point 2900.00 K. Etymology: From Berkeley.
Berkélium (Bk), élément numéro 97, masse atomique 247.0. De Berkeley.
Californium, symbol Cf, atomic number 98, atomic mass 251.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹⁰ 7s². Melting point 1173.00 K, boiling point 1743.00 K. Etymology: From California.
Californium (Cf), élément numéro 98, masse atomique 251.0. De Californie.
Einsteinium, symbol Es, atomic number 99, atomic mass 252.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹¹ 7s². Melting point 1133.00 K, boiling point 1269.00 K. Etymology: From Einstein.
Einsteinium (Es), élément numéro 99, masse atomique 252.0. D'Einstein.
Fermium, symbol Fm, atomic number 100, atomic mass 257.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹² 7s². Melting point 1800.00 K, boiling point unknown. Etymology: From Fermi.
Fermium (Fm), élément numéro 100, masse atomique 257.0. De Fermi.
Mendelevium, symbol Md, atomic number 101, atomic mass 258.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹³ 7s². Melting point 1100.00 K, boiling point unknown. Etymology: From Mendeleev.
Mendélévium (Md), élément numéro 101, masse atomique 258.0. De Mendeleïev.
Nobelium, symbol No, atomic number 102, atomic mass 259.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹⁴ 7s². Melting point 1100.00 K, boiling point unknown. Etymology: From Nobel.
Nobélium (No), élément numéro 102, masse atomique 259.0. De Nobel.
Lawrencium, symbol Lr, atomic number 103, atomic mass 266.0. Classified as a actinide in group 3, period 7. Electron configuration [Rn] 5f¹⁴ 7s² 7p¹. Melting point 1900.00 K, boiling point unknown. Etymology: From Lawrence.
Lawrencium (Lr), élément numéro 103, masse atomique 266.0. De Lawrence.
Rutherfordium, symbol Rf, atomic number 104, atomic mass 267.0. Classified as a transition metal in group 4, period 7. Electron configuration [Rn] 5f¹⁴ 6d² 7s². Melting point 2400.00 K, boiling point 5800.00 K. Etymology: From Rutherford.
Rutherfordium (Rf), élément numéro 104, masse atomique 267.0. De Rutherford.
Dubnium, symbol Db, atomic number 105, atomic mass 268.0. Classified as a transition metal in group 5, period 7. Electron configuration [Rn] 5f¹⁴ 6d³ 7s². Melting point unknown, boiling point unknown. Etymology: From Dubna.
Dubnium (Db), élément numéro 105, masse atomique 268.0. De Doubna.
Seaborgium, symbol Sg, atomic number 106, atomic mass 269.0. Classified as a transition metal in group 6, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁴ 7s². Melting point unknown, boiling point unknown. Etymology: From Seaborg.
Seaborgium (Sg), élément numéro 106, masse atomique 269.0. De Seaborg.
Bohrium, symbol Bh, atomic number 107, atomic mass 270.0. Classified as a transition metal in group 7, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁵ 7s². Melting point unknown, boiling point unknown. Etymology: From Bohr.
Bohrium (Bh), élément numéro 107, masse atomique 270.0. De Bohr.
Hassium, symbol Hs, atomic number 108, atomic mass 269.0. Classified as a transition metal in group 8, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁶ 7s². Melting point unknown, boiling point unknown. Etymology: From Hassia.
Hassium (Hs), élément numéro 108, masse atomique 269.0. De Hassia.
Meitnerium, symbol Mt, atomic number 109, atomic mass 278.0. Classified as a transition metal in group 9, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁷ 7s². Melting point unknown, boiling point unknown. Etymology: From Meitner.
Meitnérium (Mt), élément numéro 109, masse atomique 278.0. De Meitner.
Darmstadtium, symbol Ds, atomic number 110, atomic mass 281.0. Classified as a transition metal in group 10, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁸ 7s². Melting point unknown, boiling point unknown. Etymology: From Darmstadt.
Darmstadtium (Ds), élément numéro 110, masse atomique 281.0. De Darmstadt.
Roentgenium, symbol Rg, atomic number 111, atomic mass 282.0. Classified as a transition metal in group 11, period 7. Electron configuration [Rn] 5f¹⁴ 6d⁹ 7s². Melting point unknown, boiling point unknown. Etymology: From Röntgen.
Roentgenium (Rg), élément numéro 111, masse atomique 282.0. De Röntgen.
Copernicium, symbol Cn, atomic number 112, atomic mass 285.0. Classified as a transition metal in group 12, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s². Melting point unknown, boiling point 357.00 K. Etymology: From Copernicus.
Copernicium (Cn), élément numéro 112, masse atomique 285.0. De Copernic.
Nihonium, symbol Nh, atomic number 113, atomic mass 286.0. Classified as a post-transition metal in group 13, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹. Melting point 700.00 K, boiling point 1400.00 K. Etymology: From Nihon.
Nihonium (Nh), élément numéro 113, masse atomique 286.0. De Nihon.
Flerovium, symbol Fl, atomic number 114, atomic mass 289.0. Classified as a post-transition metal in group 14, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p². Melting point 340.00 K, boiling point 420.00 K. Etymology: From Flyorov.
Flérovium (Fl), élément numéro 114, masse atomique 289.0. De Fliorov.
Moscovium, symbol Mc, atomic number 115, atomic mass 290.0. Classified as a post-transition metal in group 15, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³. Melting point 700.00 K, boiling point 1400.00 K. Etymology: From Moscow.
Moscovium (Mc), élément numéro 115, masse atomique 290.0. De Moscou.
Livermorium, symbol Lv, atomic number 116, atomic mass 293.0. Classified as a post-transition metal in group 16, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴. Melting point 709.00 K, boiling point 1085.00 K. Etymology: From Livermore.
Livermorium (Lv), élément numéro 116, masse atomique 293.0. De Livermore.
Tennessine, symbol Ts, atomic number 117, atomic mass 294.0. Classified as a halogen in group 17, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵. Melting point 723.00 K, boiling point 883.00 K. Etymology: From Tennessee.
Tennesse (Ts), élément numéro 117, masse atomique 294.0. Du Tennessee.
Oganesson, symbol Og, atomic number 118, atomic mass 294.0. Classified as a noble gas in group 18, period 7. Electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶. Melting point 325.00 K, boiling point 450.00 K. Etymology: From Oganessian.
Oganesson (Og), élément numéro 118, masse atomique 294.0. D'Oganessian.
| Atomic Number | Symbol | Name (FR) | Name (EN) | Atomic Mass (u) | Group | Period | Category | Electron Configuration | Melting Point (K) | Boiling Point (K) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | H | Hydrogène | Hydrogen | 1.008 | 1 | 1 | nonmetal | 1s¹ | 13.99 | 20.27 |
| 2 | He | Hélium | Helium | 4.0026 | 18 | 1 | noble gas | 1s² | 0.95 | 4.22 |
| 3 | Li | Lithium | Lithium | 6.94 | 1 | 2 | alkali metal | [He] 2s¹ | 453.65 | 1603.0 |
| 4 | Be | Béryllium | Beryllium | 9.0122 | 2 | 2 | alkaline earth metal | [He] 2s² | 1560.0 | 2742.0 |
| 5 | B | Bore | Boron | 10.81 | 13 | 2 | metalloid | [He] 2s² 2p¹ | 2349.0 | 4200.0 |
| 6 | C | Carbone | Carbon | 12.011 | 14 | 2 | nonmetal | [He] 2s² 2p² | 3823.0 | 4098.0 |
| 7 | N | Azote | Nitrogen | 14.007 | 15 | 2 | nonmetal | [He] 2s² 2p³ | 63.15 | 77.36 |
| 8 | O | Oxygène | Oxygen | 15.999 | 16 | 2 | nonmetal | [He] 2s² 2p⁴ | 54.36 | 90.2 |
| 9 | F | Fluor | Fluorine | 18.998 | 17 | 2 | halogen | [He] 2s² 2p⁵ | 53.48 | 85.03 |
| 10 | Ne | Néon | Neon | 20.18 | 18 | 2 | noble gas | [He] 2s² 2p⁶ | 24.56 | 27.07 |
| 11 | Na | Sodium | Sodium | 22.99 | 1 | 3 | alkali metal | [Ne] 3s¹ | 370.87 | 1156.0 |
| 12 | Mg | Magnésium | Magnesium | 24.305 | 2 | 3 | alkaline earth metal | [Ne] 3s² | 923.0 | 1363.0 |
| 13 | Al | Aluminium | Aluminium | 26.982 | 13 | 3 | post-transition metal | [Ne] 3s² 3p¹ | 933.47 | 2792.0 |
| 14 | Si | Silicium | Silicon | 28.085 | 14 | 3 | metalloid | [Ne] 3s² 3p² | 1687.0 | 3538.0 |
| 15 | P | Phosphore | Phosphorus | 30.974 | 15 | 3 | nonmetal | [Ne] 3s² 3p³ | 317.3 | 553.65 |
| 16 | S | Soufre | Sulfur | 32.06 | 16 | 3 | nonmetal | [Ne] 3s² 3p⁴ | 388.36 | 717.87 |
| 17 | Cl | Chlore | Chlorine | 35.45 | 17 | 3 | halogen | [Ne] 3s² 3p⁵ | 171.6 | 239.11 |
| 18 | Ar | Argon | Argon | 39.948 | 18 | 3 | noble gas | [Ne] 3s² 3p⁶ | 83.8 | 87.3 |
| 19 | K | Potassium | Potassium | 39.098 | 1 | 4 | alkali metal | [Ar] 4s¹ | 336.53 | 1032.0 |
| 20 | Ca | Calcium | Calcium | 40.078 | 2 | 4 | alkaline earth metal | [Ar] 4s² | 1115.0 | 1757.0 |
| 21 | Sc | Scandium | Scandium | 44.956 | 3 | 4 | transition metal | [Ar] 3d¹ 4s² | 1814.0 | 3109.0 |
| 22 | Ti | Titane | Titanium | 47.867 | 4 | 4 | transition metal | [Ar] 3d² 4s² | 1941.0 | 3560.0 |
| 23 | V | Vanadium | Vanadium | 50.942 | 5 | 4 | transition metal | [Ar] 3d³ 4s² | 2183.0 | 3680.0 |
| 24 | Cr | Chrome | Chromium | 51.996 | 6 | 4 | transition metal | [Ar] 3d⁵ 4s¹ | 2180.0 | 2944.0 |
| 25 | Mn | Manganèse | Manganese | 54.938 | 7 | 4 | transition metal | [Ar] 3d⁵ 4s² | 1519.0 | 2334.0 |
| 26 | Fe | Fer | Iron | 55.845 | 8 | 4 | transition metal | [Ar] 3d⁶ 4s² | 1811.0 | 3134.0 |
| 27 | Co | Cobalt | Cobalt | 58.933 | 9 | 4 | transition metal | [Ar] 3d⁷ 4s² | 1768.0 | 3200.0 |
| 28 | Ni | Nickel | Nickel | 58.693 | 10 | 4 | transition metal | [Ar] 3d⁸ 4s² | 1728.0 | 3186.0 |
| 29 | Cu | Cuivre | Copper | 63.546 | 11 | 4 | transition metal | [Ar] 3d¹⁰ 4s¹ | 1357.77 | 2835.0 |
| 30 | Zn | Zinc | Zinc | 65.38 | 12 | 4 | transition metal | [Ar] 3d¹⁰ 4s² | 692.88 | 1180.0 |
| 31 | Ga | Gallium | Gallium | 69.723 | 13 | 4 | post-transition metal | [Ar] 3d¹⁰ 4s² 4p¹ | 302.91 | 2477.0 |
| 32 | Ge | Germanium | Germanium | 72.63 | 14 | 4 | metalloid | [Ar] 3d¹⁰ 4s² 4p² | 1211.4 | 3106.0 |
| 33 | As | Arsenic | Arsenic | 74.922 | 15 | 4 | metalloid | [Ar] 3d¹⁰ 4s² 4p³ | 1090.0 | 887.0 |
| 34 | Se | Sélénium | Selenium | 78.971 | 16 | 4 | nonmetal | [Ar] 3d¹⁰ 4s² 4p⁴ | 494.0 | 958.0 |
| 35 | Br | Brome | Bromine | 79.904 | 17 | 4 | halogen | [Ar] 3d¹⁰ 4s² 4p⁵ | 265.8 | 332.0 |
| 36 | Kr | Krypton | Krypton | 83.798 | 18 | 4 | noble gas | [Ar] 3d¹⁰ 4s² 4p⁶ | 115.79 | 119.93 |
| 37 | Rb | Rubidium | Rubidium | 85.468 | 1 | 5 | alkali metal | [Kr] 5s¹ | 312.46 | 961.0 |
| 38 | Sr | Strontium | Strontium | 87.62 | 2 | 5 | alkaline earth metal | [Kr] 5s² | 1050.0 | 1655.0 |
| 39 | Y | Yttrium | Yttrium | 88.906 | 3 | 5 | transition metal | [Kr] 4d¹ 5s² | 1799.0 | 3609.0 |
| 40 | Zr | Zirconium | Zirconium | 91.224 | 4 | 5 | transition metal | [Kr] 4d² 5s² | 2128.0 | 4682.0 |
| 41 | Nb | Niobium | Niobium | 92.906 | 5 | 5 | transition metal | [Kr] 4d⁴ 5s¹ | 2750.0 | 5017.0 |
| 42 | Mo | Molybdène | Molybdenum | 95.95 | 6 | 5 | transition metal | [Kr] 4d⁵ 5s¹ | 2896.0 | 4912.0 |
| 43 | Tc | Technétium | Technetium | 98.0 | 7 | 5 | transition metal | [Kr] 4d⁵ 5s² | 2430.0 | 4538.0 |
| 44 | Ru | Ruthénium | Ruthenium | 101.07 | 8 | 5 | transition metal | [Kr] 4d⁷ 5s¹ | 2607.0 | 4423.0 |
| 45 | Rh | Rhodium | Rhodium | 102.91 | 9 | 5 | transition metal | [Kr] 4d⁸ 5s¹ | 2237.0 | 3968.0 |
| 46 | Pd | Palladium | Palladium | 106.42 | 10 | 5 | transition metal | [Kr] 4d¹⁰ | 1828.05 | 3236.0 |
| 47 | Ag | Argent | Silver | 107.87 | 11 | 5 | transition metal | [Kr] 4d¹⁰ 5s¹ | 1234.93 | 2435.0 |
| 48 | Cd | Cadmium | Cadmium | 112.41 | 12 | 5 | transition metal | [Kr] 4d¹⁰ 5s² | 594.22 | 1040.0 |
| 49 | In | Indium | Indium | 114.82 | 13 | 5 | post-transition metal | [Kr] 4d¹⁰ 5s² 5p¹ | 429.75 | 2345.0 |
| 50 | Sn | Étain | Tin | 118.71 | 14 | 5 | post-transition metal | [Kr] 4d¹⁰ 5s² 5p² | 505.08 | 2875.0 |
| 51 | Sb | Antimoine | Antimony | 121.76 | 15 | 5 | metalloid | [Kr] 4d¹⁰ 5s² 5p³ | 903.78 | 1860.0 |
| 52 | Te | Tellure | Tellurium | 127.6 | 16 | 5 | metalloid | [Kr] 4d¹⁰ 5s² 5p⁴ | 722.66 | 1261.0 |
| 53 | I | Iode | Iodine | 126.9 | 17 | 5 | halogen | [Kr] 4d¹⁰ 5s² 5p⁵ | 386.85 | 457.4 |
| 54 | Xe | Xénon | Xenon | 131.29 | 18 | 5 | noble gas | [Kr] 4d¹⁰ 5s² 5p⁶ | 161.4 | 165.03 |
| 55 | Cs | Césium | Caesium | 132.91 | 1 | 6 | alkali metal | [Xe] 6s¹ | 301.59 | 944.0 |
| 56 | Ba | Baryum | Barium | 137.33 | 2 | 6 | alkaline earth metal | [Xe] 6s² | 1000.0 | 2170.0 |
| 57 | La | Lanthane | Lanthanum | 138.91 | 3 | 6 | lanthanide | [Xe] 5d¹ 6s² | 1193.0 | 3737.0 |
| 58 | Ce | Cérium | Cerium | 140.12 | 3 | 6 | lanthanide | [Xe] 4f¹ 5d¹ 6s² | 1068.0 | 3716.0 |
| 59 | Pr | Praséodyme | Praseodymium | 140.91 | 3 | 6 | lanthanide | [Xe] 4f³ 6s² | 1208.0 | 3793.0 |
| 60 | Nd | Néodyme | Neodymium | 144.24 | 3 | 6 | lanthanide | [Xe] 4f⁴ 6s² | 1297.0 | 3347.0 |
| 61 | Pm | Prométhium | Promethium | 145.0 | 3 | 6 | lanthanide | [Xe] 4f⁵ 6s² | 1315.0 | 3273.0 |
| 62 | Sm | Samarium | Samarium | 150.36 | 3 | 6 | lanthanide | [Xe] 4f⁶ 6s² | 1345.0 | 2067.0 |
| 63 | Eu | Europium | Europium | 151.96 | 3 | 6 | lanthanide | [Xe] 4f⁷ 6s² | 1099.0 | 1802.0 |
| 64 | Gd | Gadolinium | Gadolinium | 157.25 | 3 | 6 | lanthanide | [Xe] 4f⁷ 5d¹ 6s² | 1585.0 | 3546.0 |
| 65 | Tb | Terbium | Terbium | 158.93 | 3 | 6 | lanthanide | [Xe] 4f⁹ 6s² | 1629.0 | 3503.0 |
| 66 | Dy | Dysprosium | Dysprosium | 162.5 | 3 | 6 | lanthanide | [Xe] 4f¹⁰ 6s² | 1680.0 | 2840.0 |
| 67 | Ho | Holmium | Holmium | 164.93 | 3 | 6 | lanthanide | [Xe] 4f¹¹ 6s² | 1734.0 | 2993.0 |
| 68 | Er | Erbium | Erbium | 167.26 | 3 | 6 | lanthanide | [Xe] 4f¹² 6s² | 1802.0 | 3141.0 |
| 69 | Tm | Thulium | Thulium | 168.93 | 3 | 6 | lanthanide | [Xe] 4f¹³ 6s² | 1818.0 | 2223.0 |
| 70 | Yb | Ytterbium | Ytterbium | 173.05 | 3 | 6 | lanthanide | [Xe] 4f¹⁴ 6s² | 1097.0 | 1469.0 |
| 71 | Lu | Lutécium | Lutetium | 174.97 | 3 | 6 | lanthanide | [Xe] 4f¹⁴ 5d¹ 6s² | 1925.0 | 3675.0 |
| 72 | Hf | Hafnium | Hafnium | 178.49 | 4 | 6 | transition metal | [Xe] 4f¹⁴ 5d² 6s² | 2506.0 | 4876.0 |
| 73 | Ta | Tantale | Tantalum | 180.95 | 5 | 6 | transition metal | [Xe] 4f¹⁴ 5d³ 6s² | 3290.0 | 5731.0 |
| 74 | W | Tungstène | Tungsten | 183.84 | 6 | 6 | transition metal | [Xe] 4f¹⁴ 5d⁴ 6s² | 3695.0 | 5828.0 |
| 75 | Re | Rhénium | Rhenium | 186.21 | 7 | 6 | transition metal | [Xe] 4f¹⁴ 5d⁵ 6s² | 3459.0 | 5869.0 |
| 76 | Os | Osmium | Osmium | 190.23 | 8 | 6 | transition metal | [Xe] 4f¹⁴ 5d⁶ 6s² | 3306.0 | 5285.0 |
| 77 | Ir | Iridium | Iridium | 192.22 | 9 | 6 | transition metal | [Xe] 4f¹⁴ 5d⁷ 6s² | 2719.0 | 4701.0 |
| 78 | Pt | Platine | Platinum | 195.08 | 10 | 6 | transition metal | [Xe] 4f¹⁴ 5d⁹ 6s¹ | 2041.4 | 4098.0 |
| 79 | Au | Or | Gold | 196.97 | 11 | 6 | transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s¹ | 1337.33 | 3129.0 |
| 80 | Hg | Mercure | Mercury | 200.59 | 12 | 6 | transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s² | 234.32 | 629.88 |
| 81 | Tl | Thallium | Thallium | 204.38 | 13 | 6 | post-transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹ | 577.0 | 1746.0 |
| 82 | Pb | Plomb | Lead | 207.2 | 14 | 6 | post-transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p² | 600.61 | 2022.0 |
| 83 | Bi | Bismuth | Bismuth | 208.98 | 15 | 6 | post-transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³ | 544.7 | 1837.0 |
| 84 | Po | Polonium | Polonium | 209.0 | 16 | 6 | post-transition metal | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴ | 527.0 | 1235.0 |
| 85 | At | Astate | Astatine | 210.0 | 17 | 6 | halogen | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵ | 575.0 | 610.0 |
| 86 | Rn | Radon | Radon | 222.0 | 18 | 6 | noble gas | [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶ | 202.0 | 211.3 |
| 87 | Fr | Francium | Francium | 223.0 | 1 | 7 | alkali metal | [Rn] 7s¹ | 300.0 | 950.0 |
| 88 | Ra | Radium | Radium | 226.0 | 2 | 7 | alkaline earth metal | [Rn] 7s² | 973.0 | 2010.0 |
| 89 | Ac | Actinium | Actinium | 227.0 | 3 | 7 | actinide | [Rn] 6d¹ 7s² | 1323.0 | 3471.0 |
| 90 | Th | Thorium | Thorium | 232.04 | 3 | 7 | actinide | [Rn] 6d² 7s² | 2115.0 | 5061.0 |
| 91 | Pa | Protactinium | Protactinium | 231.04 | 3 | 7 | actinide | [Rn] 5f² 6d¹ 7s² | 1841.0 | 4300.0 |
| 92 | U | Uranium | Uranium | 238.03 | 3 | 7 | actinide | [Rn] 5f³ 6d¹ 7s² | 1405.3 | 4404.0 |
| 93 | Np | Neptunium | Neptunium | 237.0 | 3 | 7 | actinide | [Rn] 5f⁴ 6d¹ 7s² | 917.0 | 4273.0 |
| 94 | Pu | Plutonium | Plutonium | 244.0 | 3 | 7 | actinide | [Rn] 5f⁶ 7s² | 912.5 | 3501.0 |
| 95 | Am | Américium | Americium | 243.0 | 3 | 7 | actinide | [Rn] 5f⁷ 7s² | 1449.0 | 2880.0 |
| 96 | Cm | Curium | Curium | 247.0 | 3 | 7 | actinide | [Rn] 5f⁷ 6d¹ 7s² | 1613.0 | 3383.0 |
| 97 | Bk | Berkélium | Berkelium | 247.0 | 3 | 7 | actinide | [Rn] 5f⁹ 7s² | 1259.0 | 2900.0 |
| 98 | Cf | Californium | Californium | 251.0 | 3 | 7 | actinide | [Rn] 5f¹⁰ 7s² | 1173.0 | 1743.0 |
| 99 | Es | Einsteinium | Einsteinium | 252.0 | 3 | 7 | actinide | [Rn] 5f¹¹ 7s² | 1133.0 | 1269.0 |
| 100 | Fm | Fermium | Fermium | 257.0 | 3 | 7 | actinide | [Rn] 5f¹² 7s² | 1800.0 | |
| 101 | Md | Mendélévium | Mendelevium | 258.0 | 3 | 7 | actinide | [Rn] 5f¹³ 7s² | 1100.0 | |
| 102 | No | Nobélium | Nobelium | 259.0 | 3 | 7 | actinide | [Rn] 5f¹⁴ 7s² | 1100.0 | |
| 103 | Lr | Lawrencium | Lawrencium | 266.0 | 3 | 7 | actinide | [Rn] 5f¹⁴ 7s² 7p¹ | 1900.0 | |
| 104 | Rf | Rutherfordium | Rutherfordium | 267.0 | 4 | 7 | transition metal | [Rn] 5f¹⁴ 6d² 7s² | 2400.0 | 5800.0 |
| 105 | Db | Dubnium | Dubnium | 268.0 | 5 | 7 | transition metal | [Rn] 5f¹⁴ 6d³ 7s² | ||
| 106 | Sg | Seaborgium | Seaborgium | 269.0 | 6 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁴ 7s² | ||
| 107 | Bh | Bohrium | Bohrium | 270.0 | 7 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁵ 7s² | ||
| 108 | Hs | Hassium | Hassium | 269.0 | 8 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁶ 7s² | ||
| 109 | Mt | Meitnérium | Meitnerium | 278.0 | 9 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁷ 7s² | ||
| 110 | Ds | Darmstadtium | Darmstadtium | 281.0 | 10 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁸ 7s² | ||
| 111 | Rg | Roentgenium | Roentgenium | 282.0 | 11 | 7 | transition metal | [Rn] 5f¹⁴ 6d⁹ 7s² | ||
| 112 | Cn | Copernicium | Copernicium | 285.0 | 12 | 7 | transition metal | [Rn] 5f¹⁴ 6d¹⁰ 7s² | 357.0 | |
| 113 | Nh | Nihonium | Nihonium | 286.0 | 13 | 7 | post-transition metal | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹ | 700.0 | 1400.0 |
| 114 | Fl | Flérovium | Flerovium | 289.0 | 14 | 7 | post-transition metal | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p² | 340.0 | 420.0 |
| 115 | Mc | Moscovium | Moscovium | 290.0 | 15 | 7 | post-transition metal | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³ | 700.0 | 1400.0 |
| 116 | Lv | Livermorium | Livermorium | 293.0 | 16 | 7 | post-transition metal | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴ | 709.0 | 1085.0 |
| 117 | Ts | Tennesse | Tennessine | 294.0 | 17 | 7 | halogen | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵ | 723.0 | 883.0 |
| 118 | Og | Oganesson | Oganesson | 294.0 | 18 | 7 | noble gas | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ | 325.0 | 450.0 |