It takes 2084 kj of energy to remove 1 mole of electrons, Ask an Expert

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It takes 208.4 kJ of energy to remove 1 mole of electrons from 1 mole of atoms on the surface of rubidium metal. How much energy does it take to remove a single electron from an atom on the surface of solid rubidium? I got 3.46 X 10 ^-19...it tells me to check my sig figs.

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