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Physics · PYQ NEET UG 2020

हिन्दी

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

  1. A
    Singly ionised helium atom (\( \text{He}^+ \))
  2. B
    Deuteron atom
  3. C
    Singly ionised neon atom (\( \text{Ne}^+ \))
  4. D
    Hydrogen atom
View Answer & Solution

Correct answer · Option C

Singly ionised neon atom (\( \text{Ne}^+ \))

Explanation

Bohr's model is strictly applicable only to hydrogen-like single-electron species. Singly ionised neon atom (\( \text{Ne}^+ \)) has multiple electrons, so the Bohr model is not valid for it.

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