List of Atomic Weight of Elements and their Symbol

List of Atomic Weight of Elements and their Symbol

Here is a list of the atomic weights of common elements and their symbols:

Hydrogen (H) – 1.008
Helium (He) – 4.003
Lithium (Li) – 6.941
Beryllium (Be) – 9.012
Boron (B) – 10.81
Carbon (C) – 12.01
Nitrogen (N) – 14.01
Oxygen (O) – 16.00
Fluorine (F) – 19.00
Neon (Ne) – 20.18
Sodium (Na) – 22.99
Magnesium (Mg) – 24.31
Aluminum (Al) – 26.98
Silicon (Si) – 28.09
Phosphorus (P) – 30.97
Sulfur (S) – 32.07
Chlorine (Cl) – 35.45
Argon (Ar) – 39.95
Potassium (K) – 39.10
Calcium (Ca) – 40.08
Scandium (Sc) – 44.96
Titanium (Ti) – 47.87
Vanadium (V) – 50.94
Chromium (Cr) – 52.00
Manganese (Mn) – 54.94
Iron (Fe) – 55.85
Cobalt (Co) – 58.93
Nickel (Ni) – 58.69
Copper (Cu) – 63.55
Zinc (Zn) – 65.38
Gallium (Ga) – 69.72
Germanium (Ge) – 72.63
Arsenic (As) – 74.92
Selenium (Se) – 78.96
Bromine (Br) – 79.90
Krypton (Kr) – 83.80
Rubidium (Rb) – 85.47
Strontium (Sr) – 87.62
Yttrium (Y) – 88.91
Zirconium (Zr) – 91.22
Niobium (Nb) – 92.91
Molybdenum (Mo) – 95.94
Technetium (Tc) – 98.00
Ruthenium (Ru) – 101.07
Rhodium (Rh) – 102.905
Palladium (Pd) – 106.42
Silver (Ag) – 107.87
Cadmium (Cd) – 112.41
Indium (In) – 114.82
Tin (Sn) – 118.71
Antimony (Sb) – 121.76
Tellurium (Te) – 127.60
Iodine (I) – 126.90
Xenon (Xe) – 131.29
Cesium (Cs) – 132.905
Barium (Ba) – 137.327
Lanthanum (La) – 138.905
Cerium (Ce) – 140.116
Praseodymium (Pr) – 140.908
Neodymium (Nd) – 144.242
Promethium (Pm) – 145.000
Samarium (Sm) – 150.36
Europium (Eu) – 151.964
Gadolinium (Gd) – 157.25
Terbium (Tb) – 158.925
Dysprosium (Dy) – 162.50
Holmium (Ho) – 164.930
Erbium (Er) – 167.259

Thulium (Tm) – 168.93

Ytterbium (Yb) – 173.05
Lutetium (Lu) – 174.97
Hafnium (Hf) – 178.49
Tantalum (Ta) – 180.95
Tungsten (W) – 183.84
Rhenium (Re) – 186.21
Osmium (Os) – 190.23
Iridium (Ir) – 192.22
Platinum (Pt) – 195.08
Gold (Au) – 196.97
Mercury (Hg) – 200.59
Thallium (Tl) – 204.38
Lead (Pb) – 207.2
Bismuth (Bi) – 208.98
Polonium (Po) – 209.00
Astatine (At) – 210.00
Radon (Rn) – 222.00
Francium (Fr) – 223.00
Radium (Ra) – 226.03
Actinium (Ac) – 227.03
Thorium (Th) – 232.04
Protactinium (Pa) – 231.04
Uranium (U) – 238.03
Neptunium (Np) – 237.05
Plutonium (Pu) – 244.06
Americium (Am) – 243.06
Curium (Cm) – 247.07
Berkelium (Bk) – 247.07
Californium (Cf) – 251.08
Einsteinium (Es) – 252.08
Fermium (Fm) – 257.10
Mendelevium (Md) – 258.10
Nobelium (No) – 259.10
Lawrencium (Lr) – 262.11
Rutherfordium (Rf) – 261.11
Dubnium (Db) – 262.11
Seaborgium (Sg) – 266.12
Bohrium (Bh) – 264.12
Hassium (Hs) – 267.13
Meitnerium (Mt) – 268.13
Darmstadtium (Ds) – 271.14
Roentgenium (Rg) – 272.14
Copernicium (Cn) – 277.15
Nihonium (Nh) – 284.18
Flerovium (Fl) – 289.19
Moscovium (Mc) – 288.19
Livermorium (Lv) – 293.20
Tennessine (Ts) – 294.21
Oganesson (Og) – 294.21

Note that the atomic weights of elements can vary slightly due to natural isotopic variations.

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