Question

What is valency???????

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Answer 1

QUESTION -

What is valency!?

ANSWER -

The combining power or the combining capacity of an atom or an element is called its valency. The number of atoms of other elements with which one atom of an element combines is decided by the valency of that element.

OR

Valence is typically, the number of electrons needed to fill the outermost shell of an atom. Because exceptions exist, the more general definition of valence is the number of electrons with which a given atom generally bonds or number of bonds an atom forms.

Example :-

Think iron, which may have a valence of 2 or a valence of 3.

Answer 2

Answer:

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What is valency???????

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Valency is the combining capacity of the elements to form compounds.

$\huge\mathbb\pink{EXAMPLE:-}$

Oxygen, for instance, has six valence electrons but its valence is 2. Some elements may have more than one power combination (or valence), while others may have only one.