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[" How much work must be done to pull ap...

[" How much work must be done to pull apart the electron "],[" and the proton that make up the Hydrogen atom,if the "],[" atom is initially in the state with "n=2],[" O."13.6times1.6times10^(-19)J],[3.4times1.6times10^(-19)J],[1.51times1.6times10^(-19)J],[" zero "]

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