NEET Chemistry Bohr's Model MCQ Question with Solution

Calculate the radius of the first Bohr orbit for a hydrogen-like ion with atomic number Z = 3.

A

0.0529 nm

B

0.0158 nm

C

0.00176 nm

D

0.0529 m

Option B

The radius of the orbit in a hydrogen-like ion is given by r = 0.0529 nm * n^2 / Z. For n=1 and Z=3, r = 0.0529 nm / 3 = 0.0158 nm.

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