Gamma rays High-energy electromagnetic radiation emitted

Gamma rays High-energy electromagnetic radiation emitted from radioactive isotopes... [Pg.568]

Gamma rays—High-energy electromagnetic radiation emitted by certain radionuclides when their nuclei transition from a higher to a lower energy state, very similar to x-rays. [Pg.484]

Alpha particles Positively charged particles identical to helium-4 nuclei emitted by certain radioactive isotopes Beta particles Electrons ejected at high speeds from certain radioactive isotopes Gamma rays Eligh-energy electromagnetic radiation emitted from radioactive isotopes... [Pg.42]

Gamma rays are high-energy electromagnetic radiation, and gamma radiation is almost always emitted when other radioactive decay occurs. Gamma rays usually aren t written into equations because neither the mass number nor the atomic number is altered. One exception is the annihilation of an electron by a positron, an event that only produces gamma radiation ... [Pg.99]

The gamma ray is a photon of electromagnetic radiation with a very short wavelength and high energy. It is emitted from an unstable atomic nucleus and has high penetrating power. [Pg.30]

Gamma rays Electromagnetic radiation of very high energy (greater than 30 keV) emitted after nuclear reactions or by a radioactive atom when its nucleus is left in an excited state after emission of alpha or beta particles. [Pg.10]