Also the positron would be emitted in the in the radioactive decay of an atomic nucleus. The charge of the beta particle is -1, and also the mass would be 1/2000. An beta particle is used to treat some types of cancer for example bone cancer, beta particles could also be used as tracers. If an beta particles move in magnetic fields it would experience an deflecting force.
Gamma rays - gamma radiation is an electromagnet wave. Gamma rays are formed from light and because they are formed from light they have to no charge. Gamma rays will have no mass because they are formed from light/photons. Gamma rays cause cancer however it has some uses to it as well which is that it cures some types of cancer because its rays kills cancer cells.
The dangers of ionising radiation: all ionising radiation can cause damage to live cells and this means that the living cells would either day or can become into cancerous cells. This happens because ionising radiation can break molecules into bits called ions however this mean that these ions could take place in chemical reactions in the living