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Word | Thorium |
French Meaning | thorium (métal chimique radioactif) |
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 / A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria / the chemical element of atomic number 90, a white radioactive metal of the actinide series., | |
Usage | ⇒ In addition to primeval heat, Earth's core also gets heat from radioactive decay of uranium, thorium , and potassium. |
Synonyms | Th, atomic number 90, actinium, aluminum, americium, antimony, argon, arsenic, astatine, barium, berkelium, beryllium, bismuth, boron, bromine, cadmium, calcium, californium, carbon, cerium, |
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