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.
WARSAW â A plane carrying the Polish president and dozens of the countryâs top political and military leaders to the site of a Soviet massacre of Polish officers in World War II crashed in western Russia on Saturday, killing everyone on board.