Periodic Table of Elements
Left to right: Atomic number, Symbol, Name, Atomic mass, Electronegativity
Atomic number
Symbol
Name
Atomic mass
Electronegativity
1
H
Hydrogen
1.01
2.2
Electronegativity
Symbol
Name
Atomic mass
Electronegativity
| Metalloid | Unknown chemical properties |
| Alkali metal | Alkaline earth metal |
| Lanthanide | Actinide |
| Transition metal | Post-transition metal |
| Polyatomic nonmetal | Diatomic nonmetal |
| Noble gas |
| 1 | 18 | |||||||||||||||||||||||||||||||
| 1 H Hydrogen 1.01 2.2 | 2 | 13 | 14 | 15 | 16 | 17 | 2 He Helium 4 | |||||||||||||||||||||||||
| 3 Li Lithium 6.94 0.98 | 4 Be Beryllium 9.01 1.57 | 5 B Boron 10.81 2.04 | 6 C Carbon 12.01 2.55 | 7 N Nitrogen 14.01 3.04 | 8 O Oxygen 16 3.44 | 9 F Fluorine 19 3.98 | 10 Ne Neon 20.18 | |||||||||||||||||||||||||
| 11 Na Sodium 22.99 0.93 | 12 Mg Magnesium 24.31 1.31 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 Al Aluminium 26.98 1.61 | 14 Si Silicon 28.09 1.9 | 15 P Phosphorus 30.97 2.19 | 16 S Sulfur 32.07 2.58 | 17 Cl Chlorine 35.45 3.16 | 18 Ar Argon 39.95 | |||||||||||||||
| 19 K Potassium 39.1 0.82 | 20 Ca Calcium 40.08 1 | 21 Sc Scandium 44.96 1.36 | 22 Ti Titanium 47.87 1.54 | 23 V Vanadium 50.94 1.63 | 24 Cr Chromium 52 1.66 | 25 Mn Manganese 54.94 1.55 | 26 Fe Iron 55.85 1.83 | 27 Co Cobalt 58.93 1.88 | 28 Ni Nickel 58.69 1.91 | 29 Cu Copper 63.55 1.9 | 30 Zn Zinc 65.38 1.65 | 31 Ga Gallium 69.72 1.81 | 32 Ge Germanium 72.64 2.01 | 33 As Arsenic 74.92 2.18 | 34 Se Selenium 78.96 2.55 | 35 Br Bromine 79.9 2.96 | 36 Kr Krypton 83.8 | |||||||||||||||
| 37 Rb Rubidium 85.47 0.82 | 38 Sr Strontium 87.62 0.95 | 39 Y Yttrium 88.91 1.22 | 40 Zr Zirconium 91.22 1.33 | 41 Nb Niobium 92.91 1.6 | 42 Mo Molybdenum 95.96 2.16 | 43 Tc Technetium (98) 1.9 | 44 Ru Ruthenium 101.07 2.2 | 45 Rh Rhodium 102.91 2.28 | 46 Pd Palladium 106.42 2.2 | 47 Ag Silver 107.87 1.93 | 48 Cd Cadmium 112.41 1.69 | 49 In Indium 114.82 1.78 | 50 Sn Tin 118.71 1.96 | 51 Sb Antimony 121.76 2.05 | 52 Te Tellurium 127.6 2.1 | 53 I Iodine 126.9 2.66 | 54 Xe Xenon 131.29 | |||||||||||||||
| 55 Cs Caesium 132.91 0.79 | 56 Ba Barium 137.33 0.89 | 57 - 71 | 57 La Lanthanum 138.91 1.1 | 58 Ce Cerium 140.12 1.12 | 59 Pr Praseodymium 140.91 1.13 | 60 Nd Neodymium 144.24 1.14 | 61 Pm Promethium (145) 1.13 | 62 Sm Samarium 150.36 1.17 | 63 Eu Europium 151.96 1.2 | 64 Gd Gadolinium 157.25 1.2 | 65 Tb Terbium 158.93 1.2 | 66 Dy Dysprosium 162.5 1.22 | 67 Ho Holmium 164.93 1.23 | 68 Er Erbium 167.26 1.24 | 69 Tm Thulium 168.93 1.25 | 70 Yb Ytterbium 173.05 1.1 | 71 Lu Lutetium 174.97 1.27 | 72 Hf Hafnium 178.49 1.3 | 73 Ta Tantalum 180.95 1.5 | 74 W Tungsten 183.84 2.36 | 75 Re Rhenium 186.21 1.9 | 76 Os Osmium 190.23 2.2 | 77 Ir Iridium 192.22 2.2 | 78 Pt Platinum 195.08 2.28 | 79 Au Gold 196.97 2.54 | 80 Hg Mercury 200.59 2 | 81 Tl Thallium 204.38 2.04 | 82 Pb Lead 207.2 2.33 | 83 Bi Bismuth 208.98 2.02 | 84 Po Polonium (209) 2 | 85 At Astatine (210) 2.2 | 86 Rn Radon (222) |
| 87 Fr Francium (223) 0.7 | 88 Ra Radium (226) 0.9 | 89 - 103 | 89 Ac Actinium (227) 1.1 | 90 Th Thorium 232.04 1.3 | 91 Pa Protactinium 231.04 1.5 | 92 U Uranium 238.03 1.38 | 93 Np Neptunium (237) 1.36 | 94 Pu Plutonium (244) 1.28 | 95 Am Americium (243) 1.3 | 96 Cm Curium (247) 1.3 | 97 Bk Berkelium (247) 1.3 | 98 Cf Californium (251) 1.3 | 99 Es Einsteinium (252) 1.3 | 100 Fm Fermium (257) 1.3 | 101 Md Mendelevium (258) 1.3 | 102 No Nobelium (259) 1.3 | 103 Lr Lawrencium (262) 1.3 | 104 Rf Rutherfordium (267) | 105 Db Dubnium (268) | 106 Sg Seaborgium (271) | 107 Bh Bohrium (272) | 108 Hs Hassium (270) | 109 Mt Meitnerium (276) | 110 Ds Darmstadtium (281) | 111 Rg Roentgenium (280) | 112 Cn Copernicium (285) | 113 Nh Nihonium (284) | 114 Fl Flerovium (289) | 115 Mc Moscovium (288) | 116 Lv Livermorium (293) | 117 Ts Tennessine 0 | 118 Og Oganesson (294) |
| 57 La Lanthanum 138.91 1.1 | 58 Ce Cerium 140.12 1.12 | 59 Pr Praseodymium 140.91 1.13 | 60 Nd Neodymium 144.24 1.14 | 61 Pm Promethium (145) 1.13 | 62 Sm Samarium 150.36 1.17 | 63 Eu Europium 151.96 1.2 | 64 Gd Gadolinium 157.25 1.2 | 65 Tb Terbium 158.93 1.2 | 66 Dy Dysprosium 162.5 1.22 | 67 Ho Holmium 164.93 1.23 | 68 Er Erbium 167.26 1.24 | 69 Tm Thulium 168.93 1.25 | 70 Yb Ytterbium 173.05 1.1 | 71 Lu Lutetium 174.97 1.27 | ||||||||||||||||||
| 89 Ac Actinium (227) 1.1 | 90 Th Thorium 232.04 1.3 | 91 Pa Protactinium 231.04 1.5 | 92 U Uranium 238.03 1.38 | 93 Np Neptunium (237) 1.36 | 94 Pu Plutonium (244) 1.28 | 95 Am Americium (243) 1.3 | 96 Cm Curium (247) 1.3 | 97 Bk Berkelium (247) 1.3 | 98 Cf Californium (251) 1.3 | 99 Es Einsteinium (252) 1.3 | 100 Fm Fermium (257) 1.3 | 101 Md Mendelevium (258) 1.3 | 102 No Nobelium (259) 1.3 | 103 Lr Lawrencium (262) 1.3 |