Question

What are quantum numbers?

Answer 1

\(\bullet\)  The electron in an atom can be characterized by a set of four quantum numbers, namely principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (m) and spin quantum number (s). 

 \(\bullet\)  When Schrodinger equation is solved for a wave function T, the solution contains the first three quantum numbers n, l and m. 

 \(\bullet\)  The fourth quantum number arises due to the spinning of the electron about its own axis.

Answer 2

Quantum numbers are specific numbers which gives us information about an electron's position much like your home address has various components, the electron's location be told by 4 quantum numbers ,i.e., (a) Principle Quantum number tells us about shell in which electron is present.(b) Azimuthal quantum number tells us about subshell- s, p ,d ,f in which electron is present.(c)Magnetic quantum number  tells us about the orbital of the subshell in which electron is located, e.g., p_x, p_y,d_xy,d_yz e.t.c. (d)Spin quantum number tells us about direction of revolution of electron e.g., +1/2 or -1/2.

Hope I answered your doubt. Thank you.