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what happens when electrons from higher to lower energy?

A.Colored light is given off
B.the atom becomes exited
C.Another electron goes from lower energy to a high one
D.this process is not possible​

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Answer:

When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.

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