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.
Biggest python ever captured in Florida caught in Miami-Dade County. The 128-pound Burmese python that Jason Leon killed on May 11 in southeast Miami-Dade County. A Florida man captured and killed an enormous Burmese python on May 11, and wildlife officials said the snake is the longest of its kind to ever be caught in the state. Jason Leon netted the 128-pound python, which was 18 feet, 8 inches in length, while taking a late-night ride in some all-terrain-vehicles with some friends.