How much energy does it take to ionize a hydrogen atom that is in its first excited state?
answer in the units “eV”
1 Answer
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Ionization energy hydrogen = 13.6 ev.
Which is the approximate energy required
to remove the ground state electron from
the atom.
Wake up Al: first excited state (second energy level):
E = -13.6/n^2 = -13.6/2^2 = -3.4 ev.
Thanks to kirchwey for the prompt.
