why there is no change in the mass number Q and atomic number Z of the nucleus in gamma emissions?
Answers
Explanation:
When a nucleus emits an alpha particle, it loses 2 protons and 2 neutrons, so its atomic number decreases by 2 and its mass number decreases by 4. ... In all nuclear reactions, the nucleus changes from a state of higher energy to a state of lower energy. Gamma rays are pure electromagnetic energy.
Answer:
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. In the gamma decay of a nucleus, the emitted photon and recoiling nucleus each have a well-defined energy after the decay. The characteristic energy is divided between only two particles.