The electron configuration of phosphorus is 2,8,5 but the valency of phosphorus is 1- ..how?

Open in App

Solution

Looks like you have had a slight misunderstanding. The valency of phosphorus is 3 or 5.
Valency is the number of electrons the element can hold in its outer most shell ie. the combining capacity of the element. Phosphorus has 15 electrons out of which 5 are in outermost shell so the valency is 3 or 5. This is because phosphorus can either gain 3 electrons or lose the 5 electrons it already has in order to obtain octet configuration.

Hope this helps :)

Suggest Corrections

Similar questions

Q. Atomic number is Phosphorus is 15
Electronic configuration=K L. M
2. 8. 5
To form octet it requires 3 electron .Hence valency should be 3 but why is valency of Phosphorus is 5 as well as 3 .??

Phosphorus has electronic configuration of 2, 8, 5

Which period the element Phosphorus belong to?

Q. What is the electronic configuration of phosphorus?

From the symbol $_{15}^{31} P$ , state:
(i) mass number of phosphorus,
(ii) atomic number of phosphorus, and
(iii) electron configuration of phosphorus.

Q. Can phosphorus with outer electronic configuration

3 s^{2} 3 p^{3}

form

{P H}_{5} ?

Join BYJU'S Learning Program