Question

what's the valency of barium?​

Answer 1

Barium is an alkaline earth metal that has 2 outer electrons in its 6s shell. Like the other metals in this group, it readily loses these electrons to form a Ba 2+ ion. So, barium has a theoretical valency of 2, and it actually has this valency in BaCl2 and BaSO4.

Answer 2

Explanation:

Barium's atomic number is 56.

So, structure of shell is :

K shell : 2

L shell : 8

M shell : 18

N shell : 18

O shell :8

P shell : 2

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