How much energy is required to ionize a hydrogen atom if the electron occupies the n=5 orbit? - ATOMIC STRUCTURE Quiz | GKFix.in

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Question

How much energy is required to ionize a hydrogen atom if the electron occupies the n=5 orbit?

A. -8.72 × 10^-20 J
B. 8.72 × 10^-20 J
C. -8.72 × 10^-18 J
D. 8.72 × 10^-18 J