Question

what is quantum number

Answer 1

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 and can only have certain integral or half-integral values.

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)

HOPE this helps ☺️