Polonium

Define the following terms: Stable- Not likely to change or fail; firmly established Unstable- Prone to change, fail, or give way; not stable Radioactive Decay- The process in which a radioactive nucleus emits (gives off) radiation and changes to a different isotope or element. A number of different particles can be emitted by decay. The most typical are alpha, beta particles, and gamma rays. Radio Isotope- The process in which a radioactive nucleus emits (gives off) radiation and changes to a different isotope or element. A number of different particles can be emitted by decay. The most typical are alpha, beta particles, and gamma rays. Daughter Element- an element that results from the radioactive decay of another element.