what is gamma decay

Answer 1

Gamma decay is a type of radioactive decay in which an unstable atomic nucleus releases gamma rays (high-energy photons) in order to reach a more stable state. This process does not change the atomic number or mass of the nucleus, as it only releases excess energy in the form of electromagnetic radiation. Gamma decay often follows other forms of decay, such as alpha decay or beta decay. Gamma rays are the most energetic form of electromagnetic radiation, with wavelengths shorter than X-rays. They can travel far distances and can penetrate many materials, making them useful in various applications, including medical imaging and radiation therapy.