Q121 / 180 · NEET 2020 (Phase 1) · Physics

For which one of the following, Bohr model is not valid?

A
Singly ionised helium atom $({He}^{+})$
B
Deuteron atom
Correct answer
C
Singly ionised neon atom $({Ne}^{+})$
D
Hydrogen atom

Solution

Bohr's model is valid only for the single electronic systems. Therefore, it will not be valid for a singly ionised neon atom as it has more electrons.

Hence, the correct answer is option: 'C'.

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