Question

define valency by taking the examples of magnesium (at no 12 ) and oxygen (at no 8)

Answer 1

Answer:

Combining capicity of an element is called as valency.

Explanation:

electionic configaration of Mg is (2,8,4). So it's valency is 4

electionic configaration of Mg is (2,6). So it's valency is 2

Answer 2

In chemistry, the valence or valency of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules.

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