Question

What is the meaning of valency?​

Answer 1

Explanation:

An element's valence is the number of hydrogen atoms which can combine with or replace (directly or indirectly) one of the element's atoms. 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.

Answer 2

Answer:

a measurement of the power of an atom to combine with others, by the number of hydrogen atoms it can combine with or take the place of

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