Question

If z=3 what would be the valency of the element and also name the element?

Answer 1

z=3
= 2 , 1
valency = 1
the element will be lithium

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Answer 2

Answer:

Atomic number Z = 3

Electronic configuration = 2(K), T(L)

Valence shell has 1 electron in the outermost shell, so valency of element is 1. The element is Lithium.