When an electron of an atom returns from an excited state to the ground state, it emits energy in the form of a photon. How does the change in energy level compare to the energy of the emitted photon?

Question

jfraser · Answer

conservation of energy?

anonymous · Answer

It is less than the energy of the photon. 



It is about one third the energy of the photon. 



It is exactly half of the energy of the photon. 



It is equal to the energy of the photon.



It is exactly twice the energy of the photon.

anonymous · Answer

which is it?

jfraser · Answer

$conservation$ of energy

anonymous · Answer

I still don't get it?

anonymous · Answer

just chose one of the 5 answer choses

anonymous · Answer

A.It is less than the energy of the photon. 



B.It is about one third the energy of the photon. 



C.It is exactly half of the energy of the photon. 



D.It is equal to the energy of the photon.



E.It is exactly twice the energy of the photon.

jfraser · Answer

I already have chosen the answer. energy must be $conserved$. It can't just up and disappear. When one atom $loses$ energy, it must be $gained$ somewhere else

anonymous · Answer

so which answer chose would you pic?

jfraser · Answer

If you give me $5, how much money have you lost?

How much money have I gained?

How do those two amounts compare?