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.
A video posted by Orlando Brown (@orlandobrown_) on Feb 18, 2016 at 11:11am PST. This isn't Brown's first run-in with the law. He was arrested for drug possession in Texas in 2007, booked on the suspicion of drunk driving in 2011 and 2013 and struck a plea deal in 2014 for threatening a woman and her child.