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The periodic table, by family

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Hydrogen (H)

Element 1. A nonmetal, gas at standard conditions.

Atomic number: 1
Atomic mass: 1.0080 u
Family: Nonmetal
Standard state: Gas
Electron configuration: 1s1
Discovered: 1766

Helium (He)

Element 2. A noble gas, gas at standard conditions.

Atomic number: 2
Atomic mass: 4.00260 u
Family: Noble gas
Standard state: Gas
Electron configuration: 1s2
Discovered: 1868

Lithium (Li)

Element 3. An alkali metal, solid at standard conditions.

Atomic number: 3
Atomic mass: 7.0 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [He]2s1
Discovered: 1817

Beryllium (Be)

Element 4. An alkaline earth metal, solid at standard conditions.

Atomic number: 4
Atomic mass: 9.012183 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [He]2s2
Discovered: 1798

Boron (B)

Element 5. A metalloid, solid at standard conditions.

Atomic number: 5
Atomic mass: 10.81 u
Family: Metalloid
Standard state: Solid
Electron configuration: [He]2s2 2p1
Discovered: 1808

Carbon (C)

Element 6. A nonmetal, solid at standard conditions.

Atomic number: 6
Atomic mass: 12.011 u
Family: Nonmetal
Standard state: Solid
Electron configuration: [He]2s2 2p2
Discovered: Ancient

Nitrogen (N)

Element 7. A nonmetal, gas at standard conditions.

Atomic number: 7
Atomic mass: 14.007 u
Family: Nonmetal
Standard state: Gas
Electron configuration: [He] 2s2 2p3
Discovered: 1772

Oxygen (O)

Element 8. A nonmetal, gas at standard conditions.

Atomic number: 8
Atomic mass: 15.999 u
Family: Nonmetal
Standard state: Gas
Electron configuration: [He]2s2 2p4
Discovered: 1774

Fluorine (F)

Element 9. A halogen, gas at standard conditions.

Atomic number: 9
Atomic mass: 18.99840316 u
Family: Halogen
Standard state: Gas
Electron configuration: [He]2s2 2p5
Discovered: 1670

Neon (Ne)

Element 10. A noble gas, gas at standard conditions.

Atomic number: 10
Atomic mass: 20.180 u
Family: Noble gas
Standard state: Gas
Electron configuration: [He]2s2 2p6
Discovered: 1898

Sodium (Na)

Element 11. An alkali metal, solid at standard conditions.

Atomic number: 11
Atomic mass: 22.9897693 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [Ne]3s1
Discovered: 1807

Magnesium (Mg)

Element 12. An alkaline earth metal, solid at standard conditions.

Atomic number: 12
Atomic mass: 24.305 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [Ne]3s2
Discovered: 1808

Aluminum (Al)

Element 13. A post-transition metal, solid at standard conditions.

Atomic number: 13
Atomic mass: 26.981538 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Ne]3s2 3p1
Discovered: Ancient

Silicon (Si)

Element 14. A metalloid, solid at standard conditions.

Atomic number: 14
Atomic mass: 28.085 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Ne]3s2 3p2
Discovered: 1854

Phosphorus (P)

Element 15. A nonmetal, solid at standard conditions.

Atomic number: 15
Atomic mass: 30.97376200 u
Family: Nonmetal
Standard state: Solid
Electron configuration: [Ne]3s2 3p3
Discovered: 1669

Sulfur (S)

Element 16. A nonmetal, solid at standard conditions.

Atomic number: 16
Atomic mass: 32.07 u
Family: Nonmetal
Standard state: Solid
Electron configuration: [Ne]3s2 3p4
Discovered: Ancient

Chlorine (Cl)

Element 17. A halogen, gas at standard conditions.

Atomic number: 17
Atomic mass: 35.45 u
Family: Halogen
Standard state: Gas
Electron configuration: [Ne]3s2 3p5
Discovered: 1774

Argon (Ar)

Element 18. A noble gas, gas at standard conditions.

Atomic number: 18
Atomic mass: 39.9 u
Family: Noble gas
Standard state: Gas
Electron configuration: [Ne]3s2 3p6
Discovered: 1894

Potassium (K)

Element 19. An alkali metal, solid at standard conditions.

Atomic number: 19
Atomic mass: 39.0983 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [Ar]4s1
Discovered: 1807

Calcium (Ca)

Element 20. An alkaline earth metal, solid at standard conditions.

Atomic number: 20
Atomic mass: 40.08 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [Ar]4s2
Discovered: Ancient

Scandium (Sc)

Element 21. A transition metal, solid at standard conditions.

Atomic number: 21
Atomic mass: 44.95591 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d1
Discovered: 1879

Titanium (Ti)

Element 22. A transition metal, solid at standard conditions.

Atomic number: 22
Atomic mass: 47.867 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d2
Discovered: 1791

Vanadium (V)

Element 23. A transition metal, solid at standard conditions.

Atomic number: 23
Atomic mass: 50.9415 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d3
Discovered: 1801

Chromium (Cr)

Element 24. A transition metal, solid at standard conditions.

Atomic number: 24
Atomic mass: 51.996 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]3d5 4s1
Discovered: 1797

Manganese (Mn)

Element 25. A transition metal, solid at standard conditions.

Atomic number: 25
Atomic mass: 54.93804 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d5
Discovered: 1774

Iron (Fe)

Element 26. A transition metal, solid at standard conditions.

Atomic number: 26
Atomic mass: 55.84 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d6
Discovered: Ancient

Cobalt (Co)

Element 27. A transition metal, solid at standard conditions.

Atomic number: 27
Atomic mass: 58.93319 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d7
Discovered: 1735

Nickel (Ni)

Element 28. A transition metal, solid at standard conditions.

Atomic number: 28
Atomic mass: 58.693 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d8
Discovered: 1751

Copper (Cu)

Element 29. A transition metal, solid at standard conditions.

Atomic number: 29
Atomic mass: 63.55 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s1 3d10
Discovered: Ancient

Zinc (Zn)

Element 30. A transition metal, solid at standard conditions.

Atomic number: 30
Atomic mass: 65.4 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d10
Discovered: 1746

Gallium (Ga)

Element 31. A post-transition metal, solid at standard conditions.

Atomic number: 31
Atomic mass: 69.723 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Ar]4s2 3d10 4p1
Discovered: 1875

Germanium (Ge)

Element 32. A metalloid, solid at standard conditions.

Atomic number: 32
Atomic mass: 72.63 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Ar]4s2 3d10 4p2
Discovered: 1886

Arsenic (As)

Element 33. A metalloid, solid at standard conditions.

Atomic number: 33
Atomic mass: 74.92159 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Ar]4s2 3d10 4p3
Discovered: Ancient

Selenium (Se)

Element 34. A nonmetal, solid at standard conditions.

Atomic number: 34
Atomic mass: 78.97 u
Family: Nonmetal
Standard state: Solid
Electron configuration: [Ar]4s2 3d10 4p4
Discovered: 1817

Bromine (Br)

Element 35. A halogen, liquid at standard conditions.

Atomic number: 35
Atomic mass: 79.90 u
Family: Halogen
Standard state: Liquid
Electron configuration: [Ar]4s2 3d10 4p5
Discovered: 1826

Krypton (Kr)

Element 36. A noble gas, gas at standard conditions.

Atomic number: 36
Atomic mass: 83.80 u
Family: Noble gas
Standard state: Gas
Electron configuration: [Ar]4s2 3d10 4p6
Discovered: 1898

Rubidium (Rb)

Element 37. An alkali metal, solid at standard conditions.

Atomic number: 37
Atomic mass: 85.468 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [Kr]5s1
Discovered: 1861

Strontium (Sr)

Element 38. An alkaline earth metal, solid at standard conditions.

Atomic number: 38
Atomic mass: 87.62 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [Kr]5s2
Discovered: 1790

Yttrium (Y)

Element 39. A transition metal, solid at standard conditions.

Atomic number: 39
Atomic mass: 88.90584 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d1
Discovered: 1794

Zirconium (Zr)

Element 40. A transition metal, solid at standard conditions.

Atomic number: 40
Atomic mass: 91.22 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d2
Discovered: 1789

Niobium (Nb)

Element 41. A transition metal, solid at standard conditions.

Atomic number: 41
Atomic mass: 92.90637 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s1 4d4
Discovered: 1801

Molybdenum (Mo)

Element 42. A transition metal, solid at standard conditions.

Atomic number: 42
Atomic mass: 95.95 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s1 4d5
Discovered: 1778

Technetium (Tc)

Element 43. A transition metal, solid at standard conditions.

Atomic number: 43
Atomic mass: 96.90636 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d5
Discovered: 1937

Ruthenium (Ru)

Element 44. A transition metal, solid at standard conditions.

Atomic number: 44
Atomic mass: 101.1 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s1 4d7
Discovered: 1827

Rhodium (Rh)

Element 45. A transition metal, solid at standard conditions.

Atomic number: 45
Atomic mass: 102.9055 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s1 4d8
Discovered: 1803

Palladium (Pd)

Element 46. A transition metal, solid at standard conditions.

Atomic number: 46
Atomic mass: 106.42 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]4d10
Discovered: 1803

Silver (Ag)

Element 47. A transition metal, solid at standard conditions.

Atomic number: 47
Atomic mass: 107.868 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s1 4d10
Discovered: Ancient

Cadmium (Cd)

Element 48. A transition metal, solid at standard conditions.

Atomic number: 48
Atomic mass: 112.41 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d10
Discovered: 1817

Indium (In)

Element 49. A post-transition metal, solid at standard conditions.

Atomic number: 49
Atomic mass: 114.818 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d10 5p1
Discovered: 1863

Tin (Sn)

Element 50. A post-transition metal, solid at standard conditions.

Atomic number: 50
Atomic mass: 118.71 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Kr]5s2 4d10 5p2
Discovered: Ancient

Antimony (Sb)

Element 51. A metalloid, solid at standard conditions.

Atomic number: 51
Atomic mass: 121.760 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Kr]5s2 4d10 5p3
Discovered: Ancient

Tellurium (Te)

Element 52. A metalloid, solid at standard conditions.

Atomic number: 52
Atomic mass: 127.6 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Kr]5s2 4d10 5p4
Discovered: 1782

Iodine (I)

Element 53. A halogen, solid at standard conditions.

Atomic number: 53
Atomic mass: 126.9045 u
Family: Halogen
Standard state: Solid
Electron configuration: [Kr]5s2 4d10 5p5
Discovered: 1811

Xenon (Xe)

Element 54. A noble gas, gas at standard conditions.

Atomic number: 54
Atomic mass: 131.29 u
Family: Noble gas
Standard state: Gas
Electron configuration: [Kr]5s2 4d10 5p6
Discovered: 1898

Cesium (Cs)

Element 55. An alkali metal, solid at standard conditions.

Atomic number: 55
Atomic mass: 132.9054520 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [Xe]6s1
Discovered: 1860

Barium (Ba)

Element 56. An alkaline earth metal, solid at standard conditions.

Atomic number: 56
Atomic mass: 137.33 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [Xe]6s2
Discovered: 1808

Lanthanum (La)

Element 57. A lanthanide, solid at standard conditions.

Atomic number: 57
Atomic mass: 138.9055 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 5d1
Discovered: 1839

Cerium (Ce)

Element 58. A lanthanide, solid at standard conditions.

Atomic number: 58
Atomic mass: 140.116 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f1 5d1
Discovered: 1803

Praseodymium (Pr)

Element 59. A lanthanide, solid at standard conditions.

Atomic number: 59
Atomic mass: 140.90766 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f3
Discovered: 1885

Neodymium (Nd)

Element 60. A lanthanide, solid at standard conditions.

Atomic number: 60
Atomic mass: 144.24 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f4
Discovered: 1885

Promethium (Pm)

Element 61. A lanthanide, solid at standard conditions.

Atomic number: 61
Atomic mass: 144.91276 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f5
Discovered: 1945

Samarium (Sm)

Element 62. A lanthanide, solid at standard conditions.

Atomic number: 62
Atomic mass: 150.4 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f6
Discovered: 1879

Europium (Eu)

Element 63. A lanthanide, solid at standard conditions.

Atomic number: 63
Atomic mass: 151.964 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f7
Discovered: 1901

Gadolinium (Gd)

Element 64. A lanthanide, solid at standard conditions.

Atomic number: 64
Atomic mass: 157.25 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f7 5d1
Discovered: 1880

Terbium (Tb)

Element 65. A lanthanide, solid at standard conditions.

Atomic number: 65
Atomic mass: 158.92535 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f9
Discovered: 1843

Dysprosium (Dy)

Element 66. A lanthanide, solid at standard conditions.

Atomic number: 66
Atomic mass: 162.500 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f10
Discovered: 1886

Holmium (Ho)

Element 67. A lanthanide, solid at standard conditions.

Atomic number: 67
Atomic mass: 164.93033 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f11
Discovered: 1878

Erbium (Er)

Element 68. A lanthanide, solid at standard conditions.

Atomic number: 68
Atomic mass: 167.26 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f12
Discovered: 1843

Thulium (Tm)

Element 69. A lanthanide, solid at standard conditions.

Atomic number: 69
Atomic mass: 168.93422 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f13
Discovered: 1879

Ytterbium (Yb)

Element 70. A lanthanide, solid at standard conditions.

Atomic number: 70
Atomic mass: 173.05 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f14
Discovered: 1878

Lutetium (Lu)

Element 71. A lanthanide, solid at standard conditions.

Atomic number: 71
Atomic mass: 174.9667 u
Family: Lanthanide
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d1
Discovered: 1907

Hafnium (Hf)

Element 72. A transition metal, solid at standard conditions.

Atomic number: 72
Atomic mass: 178.49 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d2
Discovered: 1923

Tantalum (Ta)

Element 73. A transition metal, solid at standard conditions.

Atomic number: 73
Atomic mass: 180.9479 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d3
Discovered: 1802

Tungsten (W)

Element 74. A transition metal, solid at standard conditions.

Atomic number: 74
Atomic mass: 183.84 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d4
Discovered: 1783

Rhenium (Re)

Element 75. A transition metal, solid at standard conditions.

Atomic number: 75
Atomic mass: 186.207 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d5
Discovered: 1925

Osmium (Os)

Element 76. A transition metal, solid at standard conditions.

Atomic number: 76
Atomic mass: 190.2 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d6
Discovered: 1803

Iridium (Ir)

Element 77. A transition metal, solid at standard conditions.

Atomic number: 77
Atomic mass: 192.22 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d7
Discovered: 1803

Platinum (Pt)

Element 78. A transition metal, solid at standard conditions.

Atomic number: 78
Atomic mass: 195.08 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s1 4f14 5d9
Discovered: 1735

Gold (Au)

Element 79. A transition metal, solid at standard conditions.

Atomic number: 79
Atomic mass: 196.96657 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Xe]6s1 4f14 5d10
Discovered: Ancient

Mercury (Hg)

Element 80. A transition metal, liquid at standard conditions.

Atomic number: 80
Atomic mass: 200.59 u
Family: Transition metal
Standard state: Liquid
Electron configuration: [Xe]6s2 4f14 5d10
Discovered: Ancient

Thallium (Tl)

Element 81. A post-transition metal, solid at standard conditions.

Atomic number: 81
Atomic mass: 204.383 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d10 6p1
Discovered: 1861

Lead (Pb)

Element 82. A post-transition metal, solid at standard conditions.

Atomic number: 82
Atomic mass: 207 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d10 6p2
Discovered: Ancient

Bismuth (Bi)

Element 83. A post-transition metal, solid at standard conditions.

Atomic number: 83
Atomic mass: 208.98040 u
Family: Post-transition metal
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d10 6p3
Discovered: 1753

Polonium (Po)

Element 84. A metalloid, solid at standard conditions.

Atomic number: 84
Atomic mass: 208.98243 u
Family: Metalloid
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d10 6p4
Discovered: 1898

Astatine (At)

Element 85. A halogen, solid at standard conditions.

Atomic number: 85
Atomic mass: 209.98715 u
Family: Halogen
Standard state: Solid
Electron configuration: [Xe]6s2 4f14 5d10 6p5
Discovered: 1940

Radon (Rn)

Element 86. A noble gas, gas at standard conditions.

Atomic number: 86
Atomic mass: 222.01758 u
Family: Noble gas
Standard state: Gas
Electron configuration: [Xe]6s2 4f14 5d10 6p6
Discovered: 1900

Francium (Fr)

Element 87. An alkali metal, solid at standard conditions.

Atomic number: 87
Atomic mass: 223.01973 u
Family: Alkali metal
Standard state: Solid
Electron configuration: [Rn]7s1
Discovered: 1939

Radium (Ra)

Element 88. An alkaline earth metal, solid at standard conditions.

Atomic number: 88
Atomic mass: 226.02541 u
Family: Alkaline earth metal
Standard state: Solid
Electron configuration: [Rn]7s2
Discovered: 1898

Actinium (Ac)

Element 89. An actinide, solid at standard conditions.

Atomic number: 89
Atomic mass: 227.02775 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 6d1
Discovered: 1899

Thorium (Th)

Element 90. An actinide, solid at standard conditions.

Atomic number: 90
Atomic mass: 232.038 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 6d2
Discovered: 1828

Protactinium (Pa)

Element 91. An actinide, solid at standard conditions.

Atomic number: 91
Atomic mass: 231.03588 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f2 6d1
Discovered: 1913

Uranium (U)

Element 92. An actinide, solid at standard conditions.

Atomic number: 92
Atomic mass: 238.0289 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f3 6d1
Discovered: 1789

Neptunium (Np)

Element 93. An actinide, solid at standard conditions.

Atomic number: 93
Atomic mass: 237.048172 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f4 6d1
Discovered: 1940

Plutonium (Pu)

Element 94. An actinide, solid at standard conditions.

Atomic number: 94
Atomic mass: 244.06420 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f6
Discovered: 1940

Americium (Am)

Element 95. An actinide, solid at standard conditions.

Atomic number: 95
Atomic mass: 243.061380 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f7
Discovered: 1944

Curium (Cm)

Element 96. An actinide, solid at standard conditions.

Atomic number: 96
Atomic mass: 247.07035 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f7 6d1
Discovered: 1944

Berkelium (Bk)

Element 97. An actinide, solid at standard conditions.

Atomic number: 97
Atomic mass: 247.07031 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f9
Discovered: 1949

Californium (Cf)

Element 98. An actinide, solid at standard conditions.

Atomic number: 98
Atomic mass: 251.07959 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f10
Discovered: 1950

Einsteinium (Es)

Element 99. An actinide, solid at standard conditions.

Atomic number: 99
Atomic mass: 252.0830 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f11
Discovered: 1952

Fermium (Fm)

Element 100. An actinide, solid at standard conditions.

Atomic number: 100
Atomic mass: 257.09511 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn] 5f12 7s2
Discovered: 1952

Mendelevium (Md)

Element 101. An actinide, solid at standard conditions.

Atomic number: 101
Atomic mass: 258.09843 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f13
Discovered: 1955

Nobelium (No)

Element 102. An actinide, solid at standard conditions.

Atomic number: 102
Atomic mass: 259.10100 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f14
Discovered: 1957

Lawrencium (Lr)

Element 103. An actinide, solid at standard conditions.

Atomic number: 103
Atomic mass: 266.120 u
Family: Actinide
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d1
Discovered: 1961

Rutherfordium (Rf)

Element 104. A transition metal, solid at standard conditions.

Atomic number: 104
Atomic mass: 267.122 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d2
Discovered: 1964

Dubnium (Db)

Element 105. A transition metal, solid at standard conditions.

Atomic number: 105
Atomic mass: 268.126 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d3
Discovered: 1967

Seaborgium (Sg)

Element 106. A transition metal, solid at standard conditions.

Atomic number: 106
Atomic mass: 269.128 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d4
Discovered: 1974

Bohrium (Bh)

Element 107. A transition metal, solid at standard conditions.

Atomic number: 107
Atomic mass: 270.133 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d5
Discovered: 1976

Hassium (Hs)

Element 108. A transition metal, solid at standard conditions.

Atomic number: 108
Atomic mass: 269.1336 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d6
Discovered: 1984

Meitnerium (Mt)

Element 109. A transition metal, solid at standard conditions.

Atomic number: 109
Atomic mass: 277.154 u
Family: Transition metal
Standard state: Solid
Electron configuration: [Rn]7s2 5f14 6d7 (calculated)
Discovered: 1982

Darmstadtium (Ds)

Element 110. A transition metal, expected to be a solid at standard conditions.

Atomic number: 110
Atomic mass: 282.166 u
Family: Transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 5f14 6d8 (predicted)
Discovered: 1994

Roentgenium (Rg)

Element 111. A transition metal, expected to be a solid at standard conditions.

Atomic number: 111
Atomic mass: 282.169 u
Family: Transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 5f14 6d9 (predicted)
Discovered: 1994

Copernicium (Cn)

Element 112. A transition metal, expected to be a solid at standard conditions.

Atomic number: 112
Atomic mass: 286.179 u
Family: Transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 5f14 6d10 (predicted)
Discovered: 1996

Nihonium (Nh)

Element 113. A post-transition metal, expected to be a solid at standard conditions.

Atomic number: 113
Atomic mass: 286.182 u
Family: Post-transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]5f14 6d10 7s2 7p1 (predicted)
Discovered: 2004

Flerovium (Fl)

Element 114. A post-transition metal, expected to be a solid at standard conditions.

Atomic number: 114
Atomic mass: 290.192 u
Family: Post-transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 7p2 5f14 6d10 (predicted)
Discovered: 1998

Moscovium (Mc)

Element 115. A post-transition metal, expected to be a solid at standard conditions.

Atomic number: 115
Atomic mass: 290.196 u
Family: Post-transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 7p3 5f14 6d10 (predicted)
Discovered: 2003

Livermorium (Lv)

Element 116. A post-transition metal, expected to be a solid at standard conditions.

Atomic number: 116
Atomic mass: 293.205 u
Family: Post-transition metal
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 7p4 5f14 6d10 (predicted)
Discovered: 2000

Tennessine (Ts)

Element 117. A halogen, expected to be a solid at standard conditions.

Atomic number: 117
Atomic mass: 294.211 u
Family: Halogen
Standard state: Expected to be a Solid
Electron configuration: [Rn]7s2 7p5 5f14 6d10 (predicted)
Discovered: 2010

Oganesson (Og)

Element 118. A noble gas, expected to be a gas at standard conditions.

Atomic number: 118
Atomic mass: 295.216 u
Family: Noble gas
Standard state: Expected to be a Gas
Electron configuration: [Rn]7s2 7p6 5f14 6d10 (predicted)
Discovered: 2006