NEET Physics Bohr Model MCQ Question
Taking the Bohr radius as a₀ = 53 pm, the radius of Li⁺⁺ ion in its ground state, on the basis of Bohr’s model, will be about
53 pm
27 pm
18 pm
13 pm
Correct Answer
Detailed Explanation
In the Bohr model, the radius of an ion is proportional to n²/Z. For Li⁺⁺, Z = 3 and n = 1, so the radius is smaller than that of hydrogen, which is 53 pm.
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