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I want all the valency numbers and atomic mass of elements from 1 to 30.....

Posted by Meenal Khandelwal 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Nila N 5 years, 2 months ago

Element Atomic Number. Valency Valency of Hydrogen 1 1 Valency of Helium 2 0 Valency of Lithium 3 1 Valency of Beryllium 4 2 Valency of Boron 5 3 Valency of Carbon 6 4 Valency of Nitrogen 7 3 Valency of Oxygen 8 2 Valency of Fluorine 9 1 Valency of Neon 10 0 Valency of Sodium (Na) 11 1 Valency of Magnesium (Mg) 12 2 Valency of Aluminium 13 3 Valency of Silicon 14 4 Valency of Phosphorus 15 3 Valency of Sulphur 16 2 Valency of Chlorine 17 1 Valency of Argon 18 0 Valency of Potassium (K) 19 1 Valency of Calcium 20 2 Valency of Scandium 21 3 Valency of Titanium 22 4 Valency of Vanadium 23 5,4 Valency of Chromium 24 2 Valency of Manganese 25 7, 4, 2 Valency of Iron (Fe) 26 2, 3 Valency of Cobalt 27 3, 2 Valency of Nickel 28 2 Valency of Copper (Cu) 29 2, 1 Valency of Zinc 30 2

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