GENERAL KNOWLEDGE

Detailed explanation-1: -An input of energy is required in order for nuclear decay to happen in an atom. Gamma decay is a form of nuclear radiation that consists entirely of energy, not matter. The stability of a nucleus is determined by the ratio of electrons to protons. The mass of a neutron is approximately equal to the mass of a proton.

Detailed explanation-2: -Gamma rays () are weightless packets of energy called photons. Unlike alpha and beta particles, which have both energy and mass, gamma rays are pure energy.

Detailed explanation-3: -Gamma decay is one type of radioactive decay that a nucleus can undergo. What separates this type of decay process from alpha or beta decay is that no particles are ejected from the nucleus when it undergoes this type of decay. Instead, a high energy form of electromagnetic radiation-a gamma ray photon-is released.

Detailed explanation-4: -In the most common form of gamma decay, known as gamma emission, gamma rays (photons, or packets of electromagnetic energy, of extremely short wavelength) are radiated. Gamma decay also includes two other electromagnetic processes, internal conversion and internal pair production.