Concept explainers
To calculate:The kinetic energy of the electron ejected from the atom.
Answer to Problem 49A
The electron is ejected with kinetic energy
Explanation of Solution
Given info:
Energy of the photon =
Formula used:
For hydrogen atom, ionization energy is
Kinetic energy = excited energy
Calculation:
As per problem,
Energy of the photon =
The energy of the photon excites the electron. If it exceeds the ionization energy the electron is ejected from the nucleus with kinetic energy given as
Kinetic energy = excited energy
For hydrogen atom,
Ionization energy =
Therefore,
Kinetic energy of the electron ejected is
Conclusion:
Thus, the electron is ejected with kinetic energy
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