If $$13.6$$ $$eV$$ energy is required to ionize the hydrogen atom, then the energy required to remove an electron from $$n=2$$ is
- A$$10.2$$ $$eV$$
- B$$0$$ $$eV$$
- C$$3.4$$ $$eV$$
- D$$6.8$$ $$eV.$$
✓ Correct answer: C
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