Question

define valency no spam or Internet answers​

Answer 1

Answer:

It is the ability of an atom to gain or lose electron in order to achieve the noble gas configuration. It refers to the ability of an element to combine with other element. It is obtained by determining the number of electrons in the outermost shell (also called valence shell) of each atom of an element.

Explanation:

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Answer 2

the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with.