#periodic table of elements

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#giveaway #contest #periodic table of elements #doctor who #we the sciencey #wethesciencey #october 
we the sciencey@we the sciencey
Sun, 19 Oct 2014 21:00:13

Yo new periodic table just dropped

#tumblr advertisements #science #periodic table of elements 
Bear Lord of the Multiverse@snugz
Sat, 01 Jan 2022 14:39:08
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