Which statement is true of the energy levels of electrons in shells?

Which statement is true of the energy levels of electrons in shells?

Electrons must lose energy to move from the first to the second shell.

The valence shell has higher energy than other occupied shells.

All the electrons in an atom have similar amounts of energy.

All of the above.

None of the above.


The answer is :

The valence shell has higher energy than other occupied shells. The outer occupied shell is the valence shell, and outer shells hold electrons at higher energy than inner shells.


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