In the hydrogen atom, the electron is in its lowest energy state, n=1. The maximum electron energy that a hydrogen atom can have is 0 kJ/mole, at which point the electron would essentially be removed from the atom and it would become a H+ ion. How much energy does it take to ionize one hydrogen atom in kilojoules per mole and in Joules per atom? (Hint: calculate ΔE where εfinal is zero and εinitial is –1312.04 kJ/mol.)

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