GENERAL KNOWLEDGE

Detailed explanation-1: -In gamma decay, a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons). The number of protons (and neutrons) in the nucleus does not change in this process, so the parent and daughter atoms are the same chemical element.

Detailed explanation-2: -Emitting a gamma ray makes no difference to the mass number or the atomic number but will make the nucleus more stable.

Detailed explanation-3: -In decay, mass number and atomic number remains unchanged.

Detailed explanation-4: -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-5: -When a radioactive nucleus gives off a gamma ray, its atomic number increases by 12. The three types of radiation were first identified by Ernest Rutherford 13. Each alpha particle carries an electric charge of 14. Each beta particle carries an electric charge of 15.