Question

How to find valency of calcium

Answer 1

Answer:

2

Explanation:

Ca(OH)2 = Ca + OH

here OH has suffix 2

It Get the suffix after interchanging the valencies

Ca - valency 2

OH - valency - 1

Answer 2

Valency of calcium is 2.

Atomic number of calcium is 20

So its Electronic configuration is 2 8 8 2

So last orbit contain two electrons hence calcium loss two electrons.

Hence valency of calcium is +2.

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