Question

please solve the question ​

Answer 1

Answer:

Atomic number $15$ is phosphorus with electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^3}3{p^2}$ so it need three more electron to finish octet and have valency of three. P is strong non-metal. Therefore, the correct option is C.

Answer 2

Answer:

a.phosporous

b.oxygen

c.iron

d.carbon

Explanation: