Question

define the following term valency​

Answer 1

Answer:

Valency is the combining power or the combining capacity of an atom. ... Valency of a particular element is determined by the electrons present in the last shell. If the number of valence electrons is less than or equal to 4, valency is equal to the number of valence electrons.

Answer 2

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The combining capacity of the atoms in a element is known as valency.

Example: Valency of magnesium is 2