Questions

Energy required to completely separate the electron and proton in a hydrogen atom is ground state in Joule is

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12.42×10−20J

8.96×10−18J

2.4×10−19J

21.76×10−19J

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detailed solution

Correct option is D

Energy of electron in the ground state of hydrogen atom = -13.6 eV∴ So energy to be supplied to the atom to completely separate the electron from the proton=13.6 eV=13.6×1.6×10−19J=21.76×10-19J

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