Chemistry-Bohr's Model

NEET Chemistry Bohr's Model MCQ Question

Type: MCQ-numerical-Hard-Class 11

Calculate the energy difference in joules between the n=1 and n=5 orbits in a hydrogen atom using Bohr's model. The energy of the first orbit is given as -2.18 × 10^-18 J atom^-1.

A

2.09 × 10^-18 J

B

1.94 × 10^-18 J

C

2.04 × 10^-18 J

D

1.75 × 10^-18 J

Correct Answer

Option A

Detailed Explanation

Using the formula E_n = -2.18 × 10^-18 J / n^2, calculate E_5 and find the energy difference: E_1 - E_5 = 2.09 × 10^-18 J.

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