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Definition 2024

thorium-228

thorium-228

English

Noun

thorium-228 ‎(uncountable)

(physics) A radioactive isotope of thorium, ²²⁸₉₀Th, having a half-life of 1.4 x 10¹⁰ years; it occurs naturally, and is a source of nuclear energy

Synonyms

radiothorium