Question

Determine the number of radial nodes of 3s and 2p orbitals.

Answer 1

The radial nodes = n – l – 1
In 3s orbital n = 3, l = 0,
3s orbitals radial nodes = 3 – 0 – 1 = 2
2p orbital n = 2, l = 1,
Radial nodes of 2p orbital = 2 – 1 – 1 = 0,
Number of radial nodes of 3s and 2p orbital is 2, 0.