Dear PlainMath, pls help me to find answerEmission of light from an atom occurs when...

Emission of light from an atom occurs when the electron:
The emission of light from an atom occurs when an electron is from a higher to a lower energy level.
What are electrons?
Electrons are negatively charged particles. Atom is the smallest particle of the molecule. Atoms have positively charged particles called protons. The negatively charged particle is called electrons.
Absorption is the process by which an atom transitions from its ground state to an excited state by absorbing energy from its environment.
Therefore, The emission of light from an atom occurs when an electron is from a higher to a lower energy level.