Question

According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
delta E = 2.180 x 10^-18*(1/2 - 1/infinity) = ??
For whatever it's worth, 1/infinity = 0.
It should be delta E = -2.18x10^-18 J (1/(2squared) - 1/infinitysquared)

Dr. Bob is definitely not a doctor.

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