Question

problem 14
to go from a lower energy level in an atom to a higher level, an electron may
initially be in the ground state.
wait until the atom has changed into another atom with more protons.
absorb a photon of energy.
lose its electric charge.
give off a photon of energy.
submit hint i give up!
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Explanation:

An electron moves from a lower to a higher energy - level by absorbing a photon of energy. When it goes from a higher to a lower level, it emits a photon. Changing into another atom with more protons involves nuclear reactions, and losing electric charge or giving off a photon when moving to a higher level is incorrect.

Answer:

absorb a photon of energy.