Question

Energy released due to citation of electron from one state to another state in hydrogen atom

Answer 1

These levels are called energy states. ... When an electron in an atom has absorbed energy it is said to be in an excited state. An excited atom is unstable and tends to rearrange itself to return to its lowest energy state. When this happens, the electrons lose some or all of the excess energy by emitting light.

Answer 2

The electron absorbs energy and moves to a higher energy level. It then produces a line emission spectrum when it moves back down to a lower energy level (goes from an excited state to the ground state) and releases energy. The lowest energy state of an atom where its electrons have the lowest possible energy.