Question

What is the process called when an atom absorbs a photon whose energy exactly matches the energy required for an electronic transition?

पर्याय

• Excitation only

• Emission

• Absorption

• Ionization

Answer 1

Absorption is the process in which an atom takes in a photon whose energy exactly matches the energy needed for an electronic transition from a lower energy level to a higher energy level. This is the reverse process of emission.