Question

define valency ............​

Answer 1

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Valency of an element is a measure of its combining power with other Adam venit phones chemical compound molecule.

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Answer 2

atom /element having loose or gain electron in its outermost cell so that it's complete it's octete and duplete

and become stable the number of these electron are called valency .

the number of electrons present in outermost shell of an atom or element is called valence electron.