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.
Poland's Prime Minister Mateusz Morawiecki speaks with Marek Kuchcinski (L), speaker of parliament and Joachim Brudzinski, newly sworn-in Interior Minister after a ceremony at Presidential Palace in Warsaw, Jan. 9, 2018.