Radioactive isotope. Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays. 1  A brief treatment of radioactive isotopes follows.
BLM sympathizer Markeith Loyd (Orlando cop killer) caught. Posted on 17 January 2017. BLM sympathizer Markeith Loyd (Orlando cop killer) has finally been caught. Living about five miles away from where he killed one cop and was indirectly responsible for a second copâs it took this long to find the gangbanger thug.
Orlando gay nightclub shooter was a registered Democrat By Thomas Lifson The shooter who killed 20 and wounded 42 at a gay nightclub in Orlando, Omar Mir Siddique Mateen, was a registered Democrat who has voted in at least 3 recent general elections, according to voters.findthedata.com. He registered to vote on July, 19,2006, but skipped the election that November.