What is the valency of an element with its electronic configuration 2, 8, 1?

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Solution

The correct option is A 1
Valency is the combining capacity of the element. It is the number of electrons an element can either accept or donate in a chemical reaction.

Electronic configuration of the given element is 2, 8, 1.

Therefore it has one electron in its outermost shell which can take part in chemical reactions. Hence, the valency of this element is 1.

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