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Protactinium

Posted by on May 22, 2013 in Actinides, Metals, Radioactive

    Protactinium is a radioactive element.  Maybe that radioactive spider that bit Peter Parker was irradiated with Pa?! next element  ...

 

Atomic # = 91 Atomic weight = 231.036

Atomic # = 91
Atomic weight = 231.036

 

Protactinium is a radioactive element.  Maybe that radioactive spider that bit Peter Parker was irradiated with Pa?!

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