CBSE NOTES CLASS 12 PHYSICS
CHAPTER 12 ATOMS
Quantum numbers are the numbers required to completely specify the state of the electrons.
There are four quantum number associated with each electron,
- Principle quantum number (n) can have value 1, 2, … ∞
- Orbital angular momentum quantum number l can have value 0,1, 2, … ,(n – 1).
- Magnetic quantum number (ml) which can have values – l to l.
- Magnetic spin angular momentum quantum number (ms) which can have only two value ± .