Principal quantum number defines the principal shell in which electron is revolving around the nucleus and Azimuthal quantum number describes the name of subshell and the shape of orbitals. The value * of the principal and Azimuthal quantum number for 23rdelectron present in iron atom are :
(a) 3 and 2
(b) 3 and 1
(c) 4 and 1
(d) 4 and 0
Correct Option (a) 3 and 2
Explanation:
Electronic configuration of Fe is [AR] 4s23d6The 23rd electron will enter in 3d subshell
Hence, value of n for 3d = 3
value of l for 3d = 2
