Question

if Z is equal to 12 what would be the valency of the element also name the element​

Answer 1

Explanation:

The electronic configuration of the element is 2,8,2

So, it's valancy is 2 (to attain noble gas configuration)

The element is Magnesium.

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Answer 2

Answer:

the element (Z)= Magnesium

valency = 2

because ,

electronic configuration of

magnesium (12) = 2 , 8 , 2