An electron in a he ion transitions from the n2 state to
An electron in a He+ ion transitions from the n=2 state to the ground state. What is the frequency of the light emitted?
I got 2.5E15 s^-1, but the answer said 9.9E15 s^-1. Why?
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an electron in a he ion transitions from the n2 state to the ground state what is the frequency of the light
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