Question

An element 'X' has 7 electrons in its valence shell. Its valency is _____.

a)-2
b)-1
c)-3​

Answer 1

Answer:

-1 is the correct answer which is option b)

Explanation:

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Answer 2

Answer:

its valancy must be 1 with negative sign.

bcz to complete its octet it have to take a single electron.

Explanation:

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