Question

plz tell what are quantum Number I can't understand..​

Answer 1

Answer:

A quantum number is a value that is used when describing the energy levels available to atoms and molecules. An electron in an atom or ion has four quantum numbers to describe its state and yield solutions to the Schrödinger wave equation for the hydrogen atom.There are four quantum numbers :-

n - principal quantum number: describes the energy level

ℓ - azimuthal or angular momentum quantum number: describes the subshell

mℓ or m - magnetic quantum number: describes the orbital of the subshell

ms or s - spin quantum number: describes the spin

Quantum Number Values

According to the Pauli exclusion principle, no two electrons in an atom can have the same set of quantum numbers. Each quantum number is represented by either a half-integer or integer value.....