AP EAPCET 04-Jul-2022 Shift 1 Paper

Number of radial nodes, Rn=n−l−1
Number of angular nodes, An=l
For 4f-orbital,
Principal quantum number, n=4
Azimuthal quantum number, l=3
Thus, Rn=4−3−1=0
An=3‌. ‌
Hence, radial nodes and angular nodes for 4f-orbital are 0 and 3 respectively.