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Template:Infobox thorium isotopes: Difference between revisions
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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