Question

Give the values of quantum numbers for the electron with the highest energy in sodium atom.

Answer 1

The electron with the highest energy in a sodium atom is the valence electron that is the single electron present in 3s orbital. For this electron, the value of the 4 quantum numbers are as follows:

(a) Principal quantum number- n = 3

(b) Azimuthal quantum number- l = 0

(c) Magnetic orbital quantum number- m_l = 0

(d) Spin quantum number- m_s = +1/2