Definitions
There is 1 meaning of the phrase
Atomic Number 90.
Atomic Number 90 - as a 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
Synonyms (Exact Relations)
ththorium12Hypernyms (Closely Related)
metal7metallic elementHyponyms (Broadly Related)
Example Sentences
"Uranium has an atomic number 90."
"The element with atomic number 90 is known as thorium."
"The atomic number 90 denotes the number of protons in an atom's nucleus."
"The atomic number 90 corresponds to the element thorium on the periodic table."
"Plutonium has a higher atomic number than atomic number 90."
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Phrases
atomic number 109
