Beta particlesBeta particlesA beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.
› wiki › Beta_particleBeta particle - Wikipedia are equivalent to electrons but arise from radioactive decay of unstable atomsunstable atomsRadioactive elements are made up of atoms whose nuclei are unstable and give off atomic radiation as part of a process of attaining stability. The emission of radiation transforms radioactive atoms into another chemical element, which may be stable or may be radioactive such that it undergoes further decay.
› chemistry › radioactive-elementRadioactive Element - an overview | ScienceDirect Topics.