Question

What is Quantum number?

Answer 1

Well, quantum is a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents. Therefore, a quantum number is a number which occurs in the theoretical expression for the value of some quantized property of a subatomic particle, atom, or molecule.
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Answer 2

Quantum number of the electrons are the number which used to indicate shell,subshell,orbital and spin of the electrons.

Types of QUANTUM NUMBER :-

• Principal quantum no.(n) {1,2,3…}
• Azimuthal or subsidiary qn no.(l) {0,1,…(n-1)}
• Magnetic qn no.(m) {-1….0….+1}
• Spin qn no.(+,-1/2)

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