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Chemistry – Elements With Their Valence – General Science Notes – For W.B.C.S Examination.
রসায়ন – উপাদানগুলি তাদের ভ্যালেন্স সহ – সাধারণ বিজ্ঞান নোট – WBCS পরীক্ষার জন্য।
- The following table illustrates significant elements and their valence.Continue Reading Chemistry – Elements With Their Valence – General Science Notes – For W.B.C.S Examination.
| Element | Valence | Symbol | Atomic No. |
|---|---|---|---|
| Hydrogen | -1, +1 | H | 1 |
| Helium | 0 | He | 2 |
| Lithium | 1 | Li | 3 |
| Beryllium | 2 | Be | 4 |
| Boron | 3, 2, 1 | B | 5 |
| Carbon | -1, -2, -4, 4, 3, 2, 1, | C | 6 |
| Nitrogen | 0, -1, -2, -3,0, 5, 4, 3, 2, 1, | N | 7 |
| Oxygen | -1, -2, 0, 2, 1, | O | 8 |
| Fluorine | -1, 0 | F | 9 |
| Neon | 0 | Ne | 10 |
| Sodium | -1, 1 | Na | 11 |
| Magnesium | 2 | Mg | 12 |
| Aluminum | 3, 1 | Al | 13 |
| Silicon | -1, -2, -4, 4, 3, 2, 1 | Si | 14 |
| Phosphorus | -1, -2, -3, 0, 5, 4, 3, 2, 1 | P | 15 |
| Sulfur | -1, -2, 0, 6, 5, 4, 3, 2, 1 | S | 16 |
| Chlorine | -1, -2, 0, 6, 5, 4, 3, 2, 1 | Cl | 17 |
| Argon | 0 | Ar | 18 |
| Potassium | -1, 1 | K | 19 |
| Calcium | 2 | Ca | 20 |
| Scandium | 3, 2, 1 | Sc | 21 |
| Titanium | -1, -2, 0, 4, 3, 2, | Ti | 22 |
| Vanadium | -1, -2, 0, 5, 4, 3, 2, 1 | V | 23 |
| Chromium | -1, -2, -3, -4, 0, 6, 5, 4, 3, 2, 1 | Cr | 24 |
| Manganese | -1, -2, -3, 0, 7, 6, 5, 4, 3, 2, 1 | Mn | 25 |
| Iron | -1, -2, 0, 6, 5, 4, 3, 2, 1 | Fe | 26 |
| Cobalt | -1, 0, 5, 4, 3, 2, 1 | Co | 27 |
| Nickel | -1, 0, 6, 4, 3, 2, 1 | Ni | 28 |
| Copper | 4, 3, 2, 1, 0 | Cu | 29 |
| Zinc | 2, 1, 0 | Zn | 30 |
| Gallium | 3, 2, 1 | Ga | 31 |
| Germanium | 4, 3, 2, 1 | Ge | 32 |
| Arsenic | -3, 5, 3, 2, | As | 33 |
| Selenium | -2, 6, 4, 2, 1 | Se | 34 |
| Bromine | -1, 0, 7, 5, 4, 3, 1 | Br | 35 |
| Krypton | 2, 0 | Kr | 36 |
| Rubidium | -1, 1 | Rb | 37 |
| Strontium | 2 | Sr | 38 |
| Yttrium | 3, 2 | Y | 39 |
| Zirconium | 0, -2, 4, 3, 2, 1 | Zr | 40 |
| Niobium | -1, -3, 0, 5, 4, 3, 2, 1 | Nb | 41 |
| Molybdenum | -1, -2, 0, 6, 5, 4, 3, 2, 1 | Mo | 42 |
| Technetium | -1, -3, 0, 7, 6, 5, 4, 3, 2, 1 | Tc | 43 |
| Ruthenium | -2, 0, 8, 7, 6, 5, 4, 3, 2, 1 | Ru | 44 |
| Rhodium | -1, 0, 6, 5, 4, 3, 2, 1 | Rh | 45 |
| Palladium | 4, 2, 0 | Pd | 46 |
| Silver | 3, 2, 1, 0 | Ag | 47 |
| Cadmium | 2, 1 | Cd | 48 |
| Indium | 3, 2, 1 | In | 49 |
| Tin | -4, 4, 2 | Sn | 50 |
| Antimony | -3, 5, 3 | Sb | 51 |
| Tellurium | -2, 6, 5, 4, 2, 1 | Te | 52 |
| Iodine | -1, 0, 7, 5, 3, 1 | I | 53 |
| Xenon | 8, 6, 4, 3, 2, 0 | Xe | 54 |
| Cesium | -1, 1 | Cs | 55 |
| Barium | 2 | Ba | 56 |
| Lanthanum | 3, 2 | La | 57 |
| Cerium | 4, 3, 2 | Ce | 58 |
| Praseodymium | 4, 3, 2 | Pr | 59 |
| Neodymium | 4, 3, 2 | Nd | 60 |
| Promethium | 3 | Pm | 61 |
| Samarium | 3, 2 | Sm | 62 |
| Europium | 3, 2 | Eu | 63 |
| Gadolinium | 3, 2, 1 | Gd | 64 |
| Terbium | 4, 3, 1 | Tb | 65 |
| Dysprosium | 4, 3, 2 | Dy | 66 |
| Holmium | 3, 2 | Ho | 67 |
| Erbium | 3 | Er | 68 |
| Thulium | 3, 2 | Tm | 69 |
| Ytterbium | 3, 2 | Yb | 70 |
| Lutetium | 3 | Lu | 71 |
| Hafnium | 4, 3, 2, 1 | Hf | 72 |
| Tantalum | -1, -3, 5, 4, 3, 2, 1 | Ta | 73 |
| Tungsten | -1, -2, -4, 0, 6, 5, 4, 3, 2, 1 | W | 74 |
| Rhenium | -1, -3, 0, 7, 6, 5, 4, 3, 2, 1 | Re | 75 |
| Osmium | -2, 0, 8, 7, 6, 5, 4, 3, 2, 1 | Os | 76 |
| Iridium | -1, 0, 6, 5, 4, 3, 2, 1 | Ir | 77 |
| Platinum | 6, 5, 4, 2, 0 | Pt | 78 |
| Gold | -1, 0, 7, 5, 3, 2, 1 | Au | 79 |
| Mercury | 2, 1 | Hg | 80 |
| Thallium | 3, 1 | Tl | 81 |
| Lead | 4, 2 | Pb | 82 |
| Bismuth | -3, 5, 3, 1 | Bi | 83 |
| Polonium | -2, 6, 4, 2 | Po | 84 |
| Astatine | -1, 7, 5, 3, 1 | At | 85 |
| Radon | 2, 0 | Rn | 86 |
| Francium | 1 | Fr | 87 |
| Radium | 2 | Ra | 88 |
| Actinium | 3 | Ac | 89 |
| Thorium | 4, 3, 2 | Th | 90 |
| Protactinium | 5, 4, 3 | Pa | 91 |
| Uranium | 6, 5, 4, 3, 2 | U | 92 |
| Neptunium | 7, 6, 5, 4, 3, 2 | Np | 93 |
| Plutonium | 7, 6, 5, 4, 3, 2 | Pu | 94 |
| Americium | 7, 6, 5, 4, 3, 2 | Am | 95 |
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