JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Topic Test - Structure of Atom (4-5-21)

Which of the following sets of quantum numbers is correct for an electron in \[4f\] orbital

A) \[n=4,\,l=3,\,m=+1,\,s=+\frac{1}{2}\]

B) \[n=4,\,l=4,\,m=-4,\,s=-\frac{1}{2}\]

C) \[n=4,\,l=3,\,m=+4,\,s=+\frac{1}{2}\]

D) \[n=3,\,l=2,\,m=-2,\,s=+\frac{1}{2}\]

Correct Answer: A

Solution :

[a] For 4f orbital electron, \[n=4\]

\[l=3\] (Because 0, 1, 2, 3)

s, p, d, f

m = + 3, + 2, +1, 0, - 1, - 2, - 3

s = +1/2