What is the energy required to excite an electron from the n=3 state to the n=4 state? - ATOMS AND NUCLEI Quiz | GKFix.in

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Question

What is the energy required to excite an electron from the n=3 state to the n=4 state?

A. 0.66 eV
B. 1.89 eV
C. 2.55 eV
D. 12.75 eV