In alpha decay, a positively charged particle, identical to the nucleus of helium 4, is emitted spontaneously. Alpha decay usually occurs in heavy nuclei such as uranium or plutonium, and therefore is a major part of the radioactive fallout from a nuclear explosion. ...
What alpha decay means?
Alpha decay is the nuclear decay process whereby the parent nucleus emits an alpha particle. The alpha particle, structurally equivalent to the nucleus of a helium atom and denoted by the Greek letter α, consists of two protons and two neutrons.
What is alpha decay explain with example?
α-decay: When a radioactive nucleus disintegrates by emitting an αα-particle, the atomic number decreases by two and mass number decreases by four. Example: 88Ra226→86Rn222+2He4.
