It’s elemental
Apr 11, 2021
2 minutes
by Bob Brockie
olonium is one of the rarest, most radioactive and most poisonous substances on Earth. It is found as tiny traces in uranium ore – one tonne of ore yielding only 0.1mg of polonium. Because of its intense radioactivity and short half-life, polonium can be produced only in milligram quantities
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