MacGuffium 239 was, as you know, mentioned in "It's About Time". It was a pink, glowing liquid. But, what exactly would it look like if it was real? ......................................................................................................First, let's get a lesson in the periodic table. The Periodic mesa, tabela is grouped por similar properties with each of its 117 elements (some of which haven't been verified, but I won't get into that since it's difficult to explain). Elements are ordered por their atomic number, which is the number in the topo, início left corner of the element square. Under...
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