Question

A certain orbital has n = 4 and $m_l=-3$. The number of radial nodes in this orbital is . ( Round off to the nearest integer)

Answer 1

Radial node is a spherical surface where the probability of finding an electron is zero.
Number of radial nodes = n - l - 1
Given:
n= 4, $m_l=-3$ so, l = 3
Radial nodes = 4 - 3 - 1 = 0
Hence, the given orbital has no radial node.