NEET-XII-Physics
neet 2020 questions with solutions year:2020
- #1For which one of the following, Bohr model is not valid?
(A)Hydrogen atom
(B)Singly ionised helium atom `` (He^+) ``
(C)Deuteron atom
(D)Singly ionised neon atom `` (Ne^+) ``
digAnsr: DAns : Bohr model is applicable for only single electron species. Singly ionised neon atom has more than one electron in orbit. Hence, Bohr model is not valid