valency of first twenty elements in points
Answers
Phosphorus is 1
Calcium is 2
Your answer goes like this........
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The valencies of the first 20 elements are:-
Element Valency
1)Hydrogen 1
2)Helium 0
3)Lithium 1
4)Beryllium 2
5)Boron 3
6)Carbon 2,4
7)Nitrogen 3,5
8)Oxygen 2
9)Fluorine 1
10)neon 0
11)Sodium 1
12)Magnesium 2
13)Aluminium 3
14)Silicon 4
15)Phophorus 3,5
16)Sulfur 2,4,6
17)Chlorine 1,3,5,7
18)Argon 0
19)Potassium 1
20)Calcium 2
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