Question

explain the diffrence and similarity among valence electron ,valence number and valency?

Answer 1

Answer:

Valence electrons are the number of electrons in the outermost energy level of an atom. Valency is the number of electrons an atom needs to gain or lose in order to have a full outermost energy level.

Answer 2

Answer:

Valence electrons are the number of electrons in the outermost energy level of an atom. Valency is the number of electrons an atom needs to gain or lose in order to have a full outermost energy level.

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