There are three primary ways that naturally occurring radioactive isotopes decay: 1  Alpha particle emission. 2  Beta particle emission. 3  Gamma radiation emission.
President condemns Ankara attacks. The current migration crisis is a problem of the entire EU and not of a particular country, Polish President Andrzej Duda said after the end of the Visegrad Group two-day summit in Balatonfuered, Hungary, on Friday.
Czech gay pride row flares over president milos zeman's snub of university appointment' vclav havel was a czech writer and former dissident, who served as the 1st republic from 1993 to 2003. President of the czech republic wikipedia.