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Four (4) Quantum Numbers
1. Principal Quantum Number (n) - designates the main energy level (floor) or shell.

2. Angular Momentum Quantum Number (l) - designates the sub-level (apartment) where the electron can be found.

3. Magnetic Quantum Number (m) - designates the orbital (room) where the electrons can be found.

4. Spin Quantum Number (s) - designates the spin of the electron and descibes the behavior of the electron, not the location.

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