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.
Fifth Harmony is an American girl group formed on the second season of the The X Factor USA in July 2012. The group consists of members Ally Brooke Hernandez, Normani Hamilton, Dinah Jane Hansen, Camila Cabello, and Lauren Jauregui.heir debut EP, Better Together was released in 2013 with a first week position of number six on the US Billboard 200. Fifth Harmony won the Artist to Watch award at the 2014 MTV Video Music Awards.