what is gamma decay

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.

Gamma decay is a type of radioactive decay that involves the emission of gamma rays from a nucleus. It occurs when an excited nucleus in an excited energy state transitions to a lower energy state. This transition results in the emission of high-energy electromagnetic radiation known as gamma rays.

During gamma decay, no particles are emitted from the nucleus. Instead, the energy difference between the higher energy state and the lower energy state is released in the form of a gamma ray. Gamma rays are highly penetrating and have no charge or mass, which allows them to travel long distances through matter.

Gamma decay often occurs in conjunction with other types of radioactive decays, such as alpha decay and beta decay. It is an important process in nuclear physics and is used in many applications, including medical imaging and radiation therapy.