Periodic Table of Elements

Left to right: Atomic number, Symbol, Name, Atomic mass, Electronegativity

Atomic number Symbol Name Atomic mass Electronegativity 1 H Hydrogen 1.008 2.2 Electronegativity Symbol Name Atomic mass Electronegativity
Categories
Alkali metals Alkaline earth metals
Transition metals Post-transition metals
Metalloids Polyatomic nonmetals
Diatomic nonmetals Noble gases
Lanthanides Actinides
Hydrogen Unknown properties
1 18
1 H Hydrogen 1.008 2.2 2 13 14 15 16 17 2 He Helium 4.002602
3 Li Lithium 6.94 0.98 4 Be Beryllium 9.0121831 1.57 5 B Boron 10.81 2.04 6 C Carbon 12.011 2.55 7 N Nitrogen 14.007 3.04 8 O Oxygen 15.999 3.44 9 F Fluorine 18.998403163 3.98 10 Ne Neon 20.1797
11 Na Sodium 22.98976928 0.93 12 Mg Magnesium 24.305 1.31 3 4 5 6 7 8 9 10 11 12 13 Al Aluminium 26.9815385 1.61 14 Si Silicon 28.085 1.9 15 P Phosphorus 30.973761998 2.19 16 S Sulfur 32.06 2.58 17 Cl Chlorine 35.45 3.16 18 Ar Argon 39.948
19 K Potassium 39.0983 0.82 20 Ca Calcium 40.078 1 21 Sc Scandium 44.955908 1.36 22 Ti Titanium 47.867 1.54 23 V Vanadium 50.9415 1.63 24 Cr Chromium 51.9961 1.66 25 Mn Manganese 54.938044 1.55 26 Fe Iron 55.845 1.83 27 Co Cobalt 58.933194 1.88 28 Ni Nickel 58.6934 1.91 29 Cu Copper 63.546 1.9 30 Zn Zinc 65.38 1.65 31 Ga Gallium 69.723 1.81 32 Ge Germanium 72.63 2.01 33 As Arsenic 74.921595 2.18 34 Se Selenium 78.971 2.55 35 Br Bromine 79.904 2.96 36 Kr Krypton 83.798
37 Rb Rubidium 85.4678 0.82 38 Sr Strontium 87.62 0.95 39 Y Yttrium 88.90584 1.22 40 Zr Zirconium 91.224 1.33 41 Nb Niobium 92.90637 1.6 42 Mo Molybdenum 95.95 2.16 43 Tc Technetium 97.90721 2.1 44 Ru Ruthenium 101.07 2.2 45 Rh Rhodium 102.9055 2.28 46 Pd Palladium 106.42 2.2 47 Ag Silver 107.8682 1.93 48 Cd Cadmium 112.414 1.69 49 In Indium 114.818 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 126.90447 2.66 54 Xe Xenon 131.293 2.6
55 Cs Cesium 132.90545196 0.79 56 Ba Barium 137.327 0.89 57 - 71 57 La Lanthanum 138.90547 1.1 58 Ce Cerium 140.116 1.12 59 Pr Praseodymium 140.90766 1.13 60 Nd Neodymium 144.242 1.14 61 Pm Promethium 144.91276 62 Sm Samarium 150.36 1.17 63 Eu Europium 151.964 64 Gd Gadolinium 157.25 1.2 65 Tb Terbium 158.92535 66 Dy Dysprosium 162.5 1.22 67 Ho Holmium 164.93033 1.23 68 Er Erbium 167.259 1.24 69 Tm Thulium 168.93422 1.25 70 Yb Ytterbium 173.045 71 Lu Lutetium 174.9668 1 72 Hf Hafnium 178.49 1.3 73 Ta Tantalum 180.94788 1.5 74 W Tungsten 183.84 1.7 75 Re Rhenium 186.207 1.9 76 Os Osmium 190.23 2.2 77 Ir Iridium 192.217 2.2 78 Pt Platinum 195.084 2.2 79 Au Gold 196.966569 2.4 80 Hg Mercury 200.592 1.9 81 Tl Thallium 204.38 1.8 82 Pb Lead 207.2 1.8 83 Bi Bismuth 208.9804 1.9 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 232.0377 1.3 91 Pa Protactinium 231.03588 1.5 92 U Uranium 238.02891 1.7 93 Np Neptunium 237 1.3 94 Pu Plutonium 244 1.3 95 Am Americium 243 96 Cm Curium 247 97 Bk Berkelium 247 98 Cf Californium 251 99 Es Einsteinium 252 100 Fm Fermium 257 101 Md Mendelevium 258 102 No Nobelium 259 103 Lr Lawrencium 262 104 Rf Rutherfordium 267 105 Db Dubnium 268 106 Sg Seaborgium 271 107 Bh Bohrium 274 108 Hs Hassium 269 109 Mt Meitnerium 276 110 Ds Darmstadtium 281 111 Rg Roentgenium 281 112 Cn Copernicium 285 113 Nh Nihonium 286 114 Fl Flerovium 289 115 Mc Moscovium 288 116 Lv Livermorium 293 117 Ts Tennessine 294 118 Og Oganesson 294
57 La Lanthanum 138.90547 1.1 58 Ce Cerium 140.116 1.12 59 Pr Praseodymium 140.90766 1.13 60 Nd Neodymium 144.242 1.14 61 Pm Promethium 144.91276 62 Sm Samarium 150.36 1.17 63 Eu Europium 151.964 64 Gd Gadolinium 157.25 1.2 65 Tb Terbium 158.92535 66 Dy Dysprosium 162.5 1.22 67 Ho Holmium 164.93033 1.23 68 Er Erbium 167.259 1.24 69 Tm Thulium 168.93422 1.25 70 Yb Ytterbium 173.045 71 Lu Lutetium 174.9668 1
89 Ac Actinium 227 1.1 90 Th Thorium 232.0377 1.3 91 Pa Protactinium 231.03588 1.5 92 U Uranium 238.02891 1.7 93 Np Neptunium 237 1.3 94 Pu Plutonium 244 1.3 95 Am Americium 243 96 Cm Curium 247 97 Bk Berkelium 247 98 Cf Californium 251 99 Es Einsteinium 252 100 Fm Fermium 257 101 Md Mendelevium 258 102 No Nobelium 259 103 Lr Lawrencium 262