Question

what designation is given to an orbital with values n=3 and l=2 ?

Answer 1

n means no. of shell
ex. 3d²
so here n=3

Answer 2

principle quantum no. (n)=3

l=0 (for s)

l=1 (for p)

l=2 (for d)

l=3 (for f)

so, given value n=3 and l=2

3d orbital