Template:Infobox thorium isotopes: Difference between revisions

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m
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(the natural occurrence is important. when handling Th you actually have to be more concerned of health risks from Th-228 than Th-232. i'd say keep all the trace ones, they all have a natural story and are notable for article; only synthetic need a highbar)
 
m (1 revision imported)
 
(No difference)

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