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Online interactive periodic table website, featuring extended table, orbitals, oxidation states, solid/liquid/gas temperature, and much more. The best online periodic table on the internet.
Joe: "God dammit, I'm so tired of having to look up stuff in three different books. Why can't I find orbitals, molecular weight and valence data in one place"

Mike: "lol, go to ptable.com... Whats wrong with you?"
by cds333 March 13, 2014
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