What is radioactivity emission?
The radiation produced during radioactivity is predominantly of three types, designated as alpha, beta, and gamma rays. These types differ in velocity, in the way in which they are affected by a magnetic field, and in their ability to penetrate or pass through matter. Other, less common, types of radioactivity are electron capture (capture of one of the orbiting atomic electrons by the unstable nucleus) and positron emission-both forms of beta decay and both resulting in the change of a proton to a neutron within the nucleus-an internal conversion, in which an excited nucleus transfers energy directly to one of the atom’s orbiting electrons and ejects it from the atom.
