Question

Match the quantum numbers with the information provided by these.

	Quantum number		Information provided
A	Principal quantum number	(i)	orientation of the orbital
B	Azimuthal quantum number	(ii)	energy and size of orbital
C	Magnetic quantum number	(iii)	spin of electron
D	Spin quantum number	(iv)	shape of the orbital

Answer 1

The set of numbers used to describe the position and energy of the electron in an atom are called quantum numbers.

Analyzing and understanding all the options given

A) Principal quantum numbers describe the energy and size of the orbital. It is denoted by the symbol $‘n$’.

B) The azimuthal quantum number describes the shape of a given orbital. It is denoted by the symbol $‘l$’.

C) The magnetic quantum number gives the total number of orbitals in a subshell and describes the orientation of these orbitals in space. It is denoted by the symbol ${}^{‘}{m}_l^{{}^{\prime }}$.

D) The spin quantum number gives insight into the direction in which the electron is spinning and is denoted by the symbol $m^s$.

Conclusion:
Hence, the correct matching is

	Quantum number		Information provided
A	Principal quantum number	(ii)	energy and size of orbital
B	Azimuthal quantum number	(iv)	shape of the orbital
C	Magnetic quantum number	(i)	orientation of the orbital
D	Spin quantum number	(iii)	spin of electron