CGPET 2021 Solved Paper

For a 4d orbital,
n (principal quantum number )=4
l (azimuthal quantum number)
=2 since for d-orbital, l=2
m (magnetic quantum number) ranges from −l tol, i.e. from −2 to +2

s (spin quantum number) can be +

1

2

or −

1

2

.
So, set of quantum number for 4d-electrons are 4 ,2,1 and

−1

2

.