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Which of the following is the energy of a possible excited state of hydrogen ?
- +13.6 eV
- -6.8 eV
- -3.4 eV
- +6.8 eV
Correct answer: -3.4 eV
Solution
The energy levels of hydrogen are quantized, and the excited states have negative energy values that are less negative than the ground state. In this case, -3.4 eV corresponds to the first excited state, indicating that the electron has absorbed energy and moved to a higher energy level.
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