how much energy is needed to completely remove an electron from n=2 in a hydrogen atom?

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  • 1 decade ago
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    The energy for the n=2 level is -1/4 hR. The energy required to completely remove an electron from this level is 0-(-1/4 hR) = hR/4 = 1/4 x 2.18 x 10^-18 J.

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