* Principal Quantum Number (n): This number indicates the energy level of the electron. For a 4d orbital, n = 4.
* Angular Momentum Quantum Number (l): This number describes the shape of the orbital. For d orbitals, l = 2.
* Magnetic Quantum Number (ml): This number specifies the orientation of the orbital in space. For d orbitals, ml can take on values from -2 to +2, including 0: (-2, -1, 0, +1, +2).
* Spin Quantum Number (ms): This number describes the intrinsic angular momentum of the electron, which is also quantized. It can be either +1/2 or -1/2.
Therefore, the complete set of quantum numbers for a 4d orbital is:
* n = 4
* l = 2
* ml = -2, -1, 0, +1, +2
* ms = +1/2 or -1/2
Important Note: There are five 4d orbitals, each with a different ml value.