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Spin Quantum Number
### Formula:
$$m_s=+\frac{1}{2},-\frac{1}{2}$$
### Terminologies:
- m_s → Spin quantum number; represents spin direction of electron.
- +1/2 → Clockwise spin.
- −1/2 → Anticlockwise spin.
### Usage:
- Used to represent spin state of electrons.
