The number of angular and radial nodes for a specific orbital can be determined using a combination of the principal quantum number (n), azimuthal quantum number (l), and magnetic quantum number (m).

In this case, the orbital mentioned is the 4d orbital. The principal quantum number (n) for this orbital is 4.

The angular nodes, also known as the angular momentum nodes, are determined by the value of the azimuthal quantum number (l). The allowed values for l in the d orbitals range from 2 to -2. So, for the 4d orbital, the possible values of l are 2, 1, 0, -1, and -2. The number of angular nodes is equal to the absolute value of the azimuthal quantum number, so in this case, it is 2.

The radial nodes, on the other hand, are determined by the difference between the principal quantum number (n) and the azimuthal quantum number (l). Since n is 4 and l can be 2, 1, 0, -1, or -2, the difference will be 2 - l. Therefore, for the 4d orbital, the number of radial nodes is 2 -