NOUN | substance | radiothorium, thorium-228 | radioactive isotope of thorium with mass number 228 |
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Meaning | radioactive isotope of thorium with mass number 228. | |
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Synonym | thorium-228 | |
Broader | thorium, Th, atomic number 90 | A soft silvery-white tetravalent radioactive metallic element |
Spanish | radiotorio, torio 228, torio-228 | |
Catalan | radiotorio |
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