Here’s a table of all 118 elements with their Atomic number, symbol, atomic weight, and valency:
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 1 | H | Hydrogen | 1.008 | 1 |
| 2 | He | Helium | 4.0026 | 0 |
| 3 | Li | Lithium | 6.94 | 1 |
| 4 | Be | Beryllium | 9.0122 | 2 |
| 5 | B | Boron | 10.81 | 3 |
| 6 | C | Carbon | 12.011 | 4 |
| 7 | N | Nitrogen | 14.007 | 3, 5 |
| 8 | O | Oxygen | 15.999 | 2 |
| 9 | F | Fluorine | 18.998 | 1 |
| 10 | Ne | Neon | 20.180 | 0 |
| 11 | Na | Sodium | 22.990 | 1 |
| 12 | Mg | Magnesium | 24.305 | 2 |
| 13 | Al | Aluminum | 26.982 | 3 |
| 14 | Si | Silicon | 28.085 | 4 |
| 15 | P | Phosphorus | 30.974 | 3, 5 |
| 16 | S | Sulfur | 32.06 | 2, 4, 6 |
| 17 | Cl | Chlorine | 35.45 | 1, 3, 5 |
| 18 | Ar | Argon | 39.948 | 0 |
| 19 | K | Potassium | 39.098 | 1 |
| 20 | Ca | Calcium | 40.078 | 2 |
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 21 | Sc | Scandium | 44.956 | 3 |
| 22 | Ti | Titanium | 47.867 | 4 |
| 23 | V | Vanadium | 50.942 | 2, 3, 5 |
| 24 | Cr | Chromium | 52.0 | 2, 3, 6 |
| 25 | Mn | Manganese | 54.938 | 2, 4, 7 |
| 26 | Fe | Iron | 55.845 | 2, 3 |
| 27 | Co | Cobalt | 58.933 | 2, 3 |
| 28 | Ni | Nickel | 58.693 | 2, 3 |
| 29 | Cu | Copper | 63.546 | 1, 2 |
| 30 | Zn | Zinc | 65.38 | 2 |
| 31 | Ga | Gallium | 69.723 | 3 |
| 32 | Ge | Germanium | 72.63 | 2, 4 |
| 33 | As | Arsenic | 74.922 | 3, 5 |
| 34 | Se | Selenium | 78.971 | 2, 4, 6 |
| 35 | Br | Bromine | 79.904 | 1, 3, 5 |
| 36 | Kr | Krypton | 83.798 | 0 |
| 37 | Rb | Rubidium | 85.468 | 1 |
| 38 | Sr | Strontium | 87.62 | 2 |
| 39 | Y | Yttrium | 88.905 | 3 |
| 40 | Zr | Zirconium | 91.224 | 4 |
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 41 | Nb | Niobium | 92.906 | 3, 5 |
| 42 | Mo | Molybdenum | 95.95 | 2, 4, 6 |
| 43 | Tc | Technetium | 98.0 | 7 |
| 44 | Ru | Ruthenium | 101.07 | 2, 3, 4 |
| 45 | Rh | Rhodium | 102.91 | 3 |
| 46 | Pd | Palladium | 106.42 | 2, 4 |
| 47 | Ag | Silver | 107.87 | 1 |
| 48 | Cd | Cadmium | 112.41 | 2 |
| 49 | In | Indium | 114.82 | 3 |
| 50 | Sn | Tin | 118.71 | 2, 4 |
| 51 | Sb | Antimony | 121.76 | 3, 5 |
| 52 | I | Iodine | 126.90 | 1, 3, 5 |
| 53 | Xe | Xenon | 131.29 | 0, 2 |
| 54 | Cs | Cesium | 132.91 | 1 |
| 55 | Ba | Barium | 137.33 | 2 |
| 56 | La | Lanthanum | 138.905 | 3 |
| 57 | Ce | Cerium | 140.116 | 3, 4 |
| 58 | Pr | Praseodymium | 140.907 | 3 |
| 59 | Nd | Neodymium | 144.242 | 3 |
| 60 | Pm | Promethium | 145.0 | 3 |
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 61 | Sm | Samarium | 150.36 | 2, 3 |
| 62 | Eu | Europium | 151.98 | 3 |
| 63 | Gd | Gadolinium | 157.25 | 3 |
| 64 | Tb | Terbium | 158.93 | 3 |
| 65 | Dy | Dysprosium | 162.50 | 3 |
| 66 | Ho | Holmium | 164.93 | 3 |
| 67 | Er | Erbium | 167.26 | 3 |
| 68 | Tm | Thulium | 168.93 | 3 |
| 69 | Yb | Ytterbium | 173.04 | 3 |
| 70 | Lu | Lutetium | 175.0 | 3 |
| 71 | Hf | Hafnium | 178.49 | 4 |
| 72 | Ta | Tantalum | 180.95 | 5 |
| 73 | W | Tungsten | 183.84 | 2, 6 |
| 74 | Re | Rhenium | 186.21 | 4, 6 |
| 75 | Os | Osmium | 190.23 | 4, 6 |
| 76 | Ir | Iridium | 192.22 | 3, 4 |
| 77 | Pt | Platinum | 195.08 | 2, 4 |
| 78 | Au | Gold | 196.97 | 1, 3 |
| 79 | Hg | Mercury | 200.59 | 1, 2 |
| 80 | Tl | Thallium | 204.38 | 1, 3 |
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 81 | Bi | Bismuth | 208.98 | 3, 5 |
| 82 | Po | Polonium | 209.98 | 2, 4 |
| 83 | At | Astatine | 210.0 | 1, 3, 5 |
| 84 | Rn | Radon | 222.0 | 0 |
| 85 | Fr | Francium | 223.0 | 1 |
| 86 | Ra | Radium | 226.0 | 2 |
| 87 | Ac | Actinium | 227.0 | 3 |
| 88 | Th | Thorium | 232.04 | 4 |
| 89 | Pa | Protactinium | 231.04 | 5 |
| 90 | U | Uranium | 238.03 | 3, 6 |
| 91 | Np | Neptunium | 237.0 | 5 |
| 92 | Pu | Plutonium | 244.0 | 4, 6 |
| 93 | Am | Americium | 243.0 | 3 |
| 94 | Cm | Curium | 247.0 | 3, 4 |
| 95 | Bk | Berkelium | 247.0 | 3 |
| 96 | Cf | Californium | 251.0 | 3 |
| 97 | Es | Einsteinium | 252.0 | 3 |
| 98 | Fm | Fermium | 257.0 | 3 |
| 99 | Md | Mendelevium | 258.0 | 3 |
| 100 | No | Nobelium | 259.0 | 3 |
| S.No. | Symbol | Element Name | Atomic Weight (approx.) | Valency |
|---|
| 101 | Md | Mendelevium | 258.0 | 3 |
| 102 | No | Nobelium | 259.0 | 3 |
| 103 | Lr | Lawrencium | 262.0 | 3 |
| 104 | Rf | Rutherfordium | 267.0 | 4 |
| 105 | Db | Dubnium | 270.0 | 5 |
| 106 | Sg | Seaborgium | 271.0 | 6 |
| 107 | Bh | Bohrium | 270.0 | 7 |
| 108 | Hs | Hassium | 277.0 | 8 |
| 109 | Mt | Meitnerium | 276.0 | 3, 6 |
| 110 | Ds | Darmstadtium | 281.0 | 4 |
| 111 | Rg | Roentgenium | 280.0 | 1 |
| 112 | Cn | Copernicium | 285.0 | 2 |
| 113 | Nh | Nihonium | 284.0 | 3 |
| 114 | Fl | Flerovium | 289.0 | 4 |
| 115 | Mc | Moscovium | 288.0 | 3 |
| 116 | Lv | Livermorium | 293.0 | 3 |
| 117 | Ts | Tennessine | 294.0 | 1, 3, 5 |
| 118 | Og | Oganesson | 294.0 | 0 |
