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atomic number 90
Noun
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
synonym
Th
thorium
holo substance
monazite
thorite
hypernym
metal
metallic element
hyponym
radiothorium
thorium-228
atomic number 90 vs Th
atomic number 90 vs metal
atomic number 90 vs metallic element
atomic number 90 vs radiothorium
atomic number 90 vs thorium
atomic number 90 vs thorium-228
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