NEET Chemistry Bohr's Model MCQ Question
What is the energy in joules associated with the fifth orbit of a hydrogen atom if the energy associated with the first orbit is -2.18 × 10^(-18) J?
-8.72 × 10^(-20) J
-4.36 × 10^(-19) J
-2.18 × 10^(-20) J
-1.09 × 10^(-19) J
Correct Answer
Detailed Explanation
The energy of an orbit in a hydrogen atom is inversely proportional to the square of the principal quantum number (n). For n=5, the energy is (1/5^2) times the energy of the first orbit, which is -2.18 × 10^(-18) J. Thus, the energy for n=5 is -8.72 × 10^(-20) J.
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