Question

An elemet X has seven electrons in its outer most shell its valancy is---------- (+1/-1/+2/-2/0)
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Answer 1

Answer:

It needs to gain one electron to gain octet.

Explanation:

Hence its valency is - 1

Answer 2

Answer:

1. -2

Explanation:

1. the element x will give 2 electrons to become stable. So its valency is -2.