Question

what is valency of electron
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Answer 1

Explanation:

a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

Answer 2

If your question is:What is valence electron?

Answer:

Valence electron is the number of electrons in the outermost shell/valence shell of an atom.

And if your question is: What is the charge of electron

Answer:

The charge on an electron is 1.6×10^-19 Columb.

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