Question

Please explain how? The number of valence electrons in ³¹P15 is.......​

Answer 1

Answer:

+3

Explanation:

the base digit represents the no. of electrons in any element

so its configuration will be 2,8,5 therefore valence electrons wil be 5 and it will have a valency of +3

Answer 2

Answer:

Here P is stand for phosphorus, 15 is electronic no. and 31 is electronic mass of phosphorus.

electronic configuration of phosphorus is 2,8,5

so, valency of phosphorus is -3.

I hope it can help you.