Question

Difine the term velence and velency electrons and then referring to the phosphorus. Explain the different between these terms

Answer 1

Answer:

valency:- It refers to the combining capacity of elements.

Valence electrons:-The electrons present in the outermost shell or orbit are called valence electrons.

Phosphorus electronic configuration= (2,8,5)

since valence electrons are 5

So it is a non metal

Valency of non metal =8-no.of valence electrons

=8-5

=3

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