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atomic number 90 (0 synonym found)
Definition of atomic number 90:
(n) :
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
Definition of atomic number 90:
(n) :
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 make the world a better place giveback project.
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