Question

The number of electrons in the outermost shell of chlorine is 7. What is its valency and Why?​

Answer 1

Answer:

the combining power of an element is called valency

its valency would be 1

as it only one element is able to combine

Answer 2

valency of chlorine is -1

this is because chlorine is a non metal and non metal always tend to gain electrons. the valency is 7. instead of loosing 7 electrons to become stable, it gains one.

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