Chemical Reactions. Four minutes of the best moments of stuff burning, breaking, freezing, exploding, melting, and generally reacting in interesting ways. [more inside]
posted by quin on Dec 30, 2011 - 15 comments

Chemistry in its Element - a weekly podcast from the Royal Society of Chemistry offering an engagingly-narrated stroll through the periodic table, element by element.
posted by Wolfdog on Oct 29, 2009 - 15 comments

Theodore Gray's interactive periodic table isn't the only periodic table online -- another one was posted to MeFi last month -- but I think it's the most gorgeous, informative, and ambitious periodic table I've ever seen, featuring actual samples of most of the elements and their practical uses, a fascinating display of uranium isotopes, and explosive "sodium party" videos and more from Gray's many years of obsession with the elements.
posted by digaman on Nov 1, 2007 - 14 comments

"Gold is one of the few elements you can find just lying on the ground. This one-ounce pure gold nugget was found in Alaska around 1890 by Hogamorth Marion, while on a trip to sell shoes to Eskimoes. Seriously."

An interactive periodical table.
posted by Terminal Verbosity on Nov 29, 2006 - 34 comments

Time to replace your old Periodic Table. ...a joint American-Russian team has found two new elements—numbers 113 and 115 on the periodic table—hinting at an impending breakthrough in creating novel forms of matter that will test our understanding of atomic behavior.
posted by mcgraw on Mar 29, 2004 - 15 comments

Earth Scientist's Periodic Table.
posted by monju_bosatsu on Dec 30, 2003 - 3 comments

There may be many more but they haven't been dis-coh-vahd As of 1959, the news of 102 elements had come to Harvard (a modern remake would have to cram in 13 more.) There's more than one way to look at them, like spiral, rotating, illustrated, sub-atomic, symmetric, or forward-looking. Been there? Done That? Get the t-shirt.
posted by Zed_Lopez on May 1, 2003 - 9 comments

Tom Lehrer Sings The Periodic Table. [Flash required]
posted by MiguelCardoso on Oct 23, 2002 - 19 comments

The Periodic Table Table now has its own, newly updated website. This had made the rounds on various websites when it was a mere set of construction photos on a bandwidth -constrained site. This is now much better.
posted by vacapinta on Jun 6, 2002 - 11 comments

An oldie but a goodie: The Visual Table of the Elements.
posted by solistrato on Jul 13, 2001 - 5 comments

Leaping Lizards, Batman! It's...it's...PERIODIC!
posted by plinth on May 8, 2000 - 1 comment