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Hasil cari dari kata atau frase: thorium-228 (0.00911 detik)
Found 2 items, similar to thorium-228.
English → English (WordNet)
Definition: thorium-228
thorium-228
n : radioactive isotope of thorium with mass number 228 [syn:
radiothorium]
English → English (gcide)
Definition: thorium-228
radiothorium
\ra`di*o*tho"ri*um\
(r[=a]`d[i^]*[o^]*th[^o]r"[=e]*[u^]m), n. (Chem.)
an earlier name for the thorium isotope
thorium-228, given
by its discoverer Otto Hahn. It is a radioactive substance
formed as one of series of products in the chain of
radioactive decay of thorium. Its immediate predecessor in
the chain is Actinium-228, and it decays by alpha emission to
radium-224 with a half-life of 1.91 years. The name
radiothorium was given prior to the full understanding of the
nature of isotopes of elements.
[PJC]
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