Question

Ganit prakash-class-IX
chapter-4
let us work:-4
1.let us calculate the distance of the following point from origin
iii.(a+b,a-b)​

Answer 1

Answer:

hope it's helpful

Step-by-step explanation:

Atomic number (Z)=15=P→[Ne]3s

2

3p

3

Phosphorus belongs to 15th group

number of valence electrons 3s

2

3p

3

=5

and valency =3 in ground state.

Hence, the correct option is C