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.
Andrzej Sebastian Duda (Polish pronounciation: ( listen); born 16 May 1972) is a Polish politician who is the sixth and current President of Poland, holding the office since 6 August 2015. Before his tenure as President, Duda was a member of Polish Lower House (Sejm) from 2011 to 2014 and the European Parliament from 2014 to 2015.