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.
President Andrzej Duda welcomes NATO troops. 1  The arrival of NATO forces in Poland is a historical moment for which generations of Polish people have waited since the end of World War II, President Andrzej Duda said at the Thursday welcoming of a March-arrived NATO battalion in Orzysz, north Poland. Thursday, 13 April 2017.