Question

What happens when an electron moves to a higher energy level? the atom loses the electron. the atom becomes more stable. the electron gains energy?

Answer 1

When an atom moves to a higher position it gains energy. Also when that same electron falls back down it releases a particle of light, also known as a  photon. I hope this answered your inquiry, and if you require further assistance feel free to ask.

Answer 2

it gains energy. Also when that same electron falls back down it releases a particle of light, also