Question

define symbol and valency?​

Answer 1

Answer:

Valency is the combining power of an element. The valency of an element is related to how many electrons are in the outer shell.

Explanation:

A chemical symbol denotes in short, a particular element or an atom of that element. Valency is the combining capability of an element. In other words, the number of electrons which an atom can gain or share or lose when a chemical reaction takes place defines its valency.

Answer 2

Answer:

Valency is the measure of the combining capacity of atoms or molecules. Therefore, it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.

Explanation:

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