Radionuclide

atom that has excess nuclear energy, making it unstable

synthetic radioisotope isotope of uranium thorium-230 americium-234 americium-238 americium-239 americium-240 americium-242 americium-243 americium-244 americium-245 bohrium-262 bohrium-270 bohrium-272 bohrium-274 nuclide generator radioactive source sulfur-31 extinct radionuclide americium-241

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