Chemistry, asked by fardeennadaf, 5 months ago

An element has an electronic configuration of 2, 8, 7. Its valency is

Answers

Answered by samridhi4161

Answer: its, 1

Explanation:

Answered by sweetkudi12

Answer:

chlorine

Explanation:

The electronic configuration of chlorine can be written as 2, 8, 7. 2, 8, 7 electrons are distributed in the shells K, L, M respectively. Therefore, valence electron in chlorine is 7 and it needs to gain 1 electron from the outermost orbit to attain octet. Hence, the valency of chlorine is 1.

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