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Binding Energy

An electron, ...

Question

An electron, in a hydrogen-like atom, is in an excited state. It has a total energy of $- 3.4 e V$ . Calculate the kinetic energy.(in ev)

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Solution

As given,
$E n = 3.4 e V$
The kinetic energy is equal to the magnitude of total energy in this case
$∴$ $K_{E} = 3.4 e V$

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