In a large collection of atoms, there is a definite time, called the half-life of the isotope, after which one-half of the total number of nuclei would have decayed. This time varies from few-millionths of a second to millions of years for different radioactive isotopes.adioactivity, also known as radioactive decay, is a process by which a radioactive isotope loses subatomic particles (helium nuclei or electrons) from its nucleus along with usual emission of gamma radiation, and becomes a different element.
This page uses Creative Commons Licensed content from Wikipedia (view authors). Fifth Harmony (also 5th Harmony or 5H and formerly LYLAS and later 1432) is an American girl group, between the ages of 18-22, consisting of members Dinah Jane Hansen, Ally Brooke, Camila Cabello, Normani Kordei and Lauren Jauregui.
After The X Factor, Fifth Harmony signed to Epic Records in the U.S. and Cowell's Syco Records in Britain. The group's initial EPs, Better Together and the Spanish-language Juntos, appeared in 2013. The album debuted at number five on the U.S. Billboard 200, eventually reaching gold certification status.