The electronic configuration of an element B is 2, 8, 7 and it forms an ionic compound AB2
with another element A. What is the valency of element A?
Answers
Answered by
24
the valency of A is 2
valency of B = 1
and the formula = AB2
we know during writing fornulas the valency gets interchanged
therefore valency of A = 2
valency of B = 1
and the formula = AB2
we know during writing fornulas the valency gets interchanged
therefore valency of A = 2
Answered by
27
It is clear that the valency of B is 1
The compound is AB2
While we write the formula, Valency of A goes to B and that of B to A.
Thus, Valency of A is 2
As metals are placed before in formula, Valency of A is +2
The compound is AB2
While we write the formula, Valency of A goes to B and that of B to A.
Thus, Valency of A is 2
As metals are placed before in formula, Valency of A is +2
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