Question

for 2p_y what is the value of magnetic quantum no and how we will get it

Answer 1

Dear ​Rajesh Parihar,,

For any p orbital value of m will be from -1 to +1 including zero.
p has three orbitals named as px, py, pz
in general we consider z as main axis so value for pz=0
and for px and py the value is +1 or -1 and is exchangable.
py will have either +1 or -1 value for m.

Regards