Below are possible answers for the crossword clue Radioactive element.
8 letter answer(s) to radioactive element
ACTINIUM
a radioactive element of the actinide series; found in uranium ores
ASTATINE
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
RUBIDIUM
a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
9 letter answer(s) to radioactive element
PLUTONIUM
a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
6 letter answer(s) to radioactive element
RADIUM
an intensely radioactive metallic element that occurs in minute amounts in uranium ores
5 letter answer(s) to radioactive element
RADON
a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
7 letter answer(s) to radioactive element
THORIUM
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
URANIUM
Uranium - a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
Other crossword clues with similar answers to 'Radioactive element'