caesium, neptunium, radioactive, californium, radioactive material, fissionable, trinitrotoluene, nuclides, krypton, tritium, neutron radiation, curies, picric acid, methyl chloride, hexafluoride, beryllium, plutonium, tetroxide, tremolite, trichloroethane, cesium, radioactivity, chlorate, actinide, arsine, chromic acid, polonium, carbon tetrachloride, curium, oxidiser, amphibole, allyl alcohol, lanthanides, perchlorates, samarium, pentane, phosphine, methylamine, boron trifluoride, praseodymium, rocket propellant, sodium iodide, raffinate, thermite, radioactive decay, perchloric acid, oxidizing agent, radionuclide, nuclide, corona discharge, pentoxide, sarin, lutetium, hydrofluoric acid, antineutrinos, tetrachlorethylene, anthracene, neutrons, alkali metal, hydrogen cyanide, contaminant, gamma radiation, simulant, calcium sulphate, radium, dichromate, chlorobenzene, rems, radiation, lepidolite, sodium dichromate, phosgene, pyroxene, ionizing radiation, arsenide, corrosives, ionizing, pentachlorophenol, ethene, heptachlor, oxidizers, deuterium oxide, yttrium, allanite, enargite, methylene chloride, cyclohexane, corium, metalloid, deflagration, formate, strontium, formamide, alpha particle, hydrogen chloride, iridium, hafnium, carbon disulfide, tokamak, kiloton, tellurium, aluminosilicate, vanadium, actinides, cerium, manganese, molybdenum, titanium, uranium, actinium, aluminium, aluminum, antimony, arsenic, arsenical, arsenicals, atom, bismuth, chromium, cobalt, galena

atomic number 97, berkelium, bk

metal, metallic element

am, atomic number 95