Question

what is light?
multiple - choice question
the electron fell down a level which means it...
gained more energy.
lost energy.
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the same way, incoming light can elevate an electron to a higher state of energy

Explanation:

When an electron falls down a level, it moves from a higher - energy state to a lower - energy state. According to the principles of atomic structure and electron energy levels, electrons in higher energy levels have more energy. So, moving to a lower level means losing energy.

Answer:

lost energy.