What does gamma decay release?
Gamma rays (photons).
When a nucleus of an atom has too much energy, it can emit this energy in the form of a photon (electromagnetic radiation).
This photon, or gamma ray (
When a nucleus emits a photon, the number of protons and neutrons in the nucleus remains the same. This is why it is called isomeric transition.
The general form of the equation for this decay is: