TOTO,
we're not in Kansas anymore...

A server error occured and unexplained things are happening around us.

sebastianpietrzak55

selen symbol, selen, se, 34 (łac. selenium) grupa, okres, blok 16, 4, p stopień utlenienia ±ii, iv, vi właściwości metaliczne niemetal właściwości tle

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Untitled | Presentation by sebastianpietrzak55

TOTO,we're not in Kansas anymore...

TOTO,
we're not in Kansas anymore...