Question

How many nodal planes through the nucleus do you think a g orbital has?

Answer 1

First of all, node is the point or region around the nucleus where there is zero probability of finding the electron. Nodal plane or angular node passes through the nucleus. no. of nodal planes = azimuthal quantum number = l Radial node does not pass through the nucleus. no. of radial nodes = n-l-1 where n= princ. quantum no.

Answer 2

A node is defined as a point around the nucleus where the probability of finding an electron is zero.
A nodal plane passes through the nucleus.
The number of nodal planes for a certain orbital is equivalent to the angular momentum quantum number (l) of this orbital.

Therefore, since the orbital g has l=4, therefore,
the number of nodal planes = 4