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What minimum energy takes hydrogen from its ground state to the second excited state?
A10.2 eV
B12.09 eV
C13.6 eV
D1.89 eV
Answer & Solution
Correct answer: B. 12.09 eV
The second excited state is n = 3 at -1.51 eV, so the gap from -13.6 eV is 12.09 eV.
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