http://www.chemicool.com/elements Cooler Than Absolute Zero! Mon, 19 Nov 2012 20:12:52 +0000 hourly 1 http://wordpress.org/?v=3.5.1 http://www.chemicool.com/elements/copper.html#comment-797 Doug Stewart Mon, 24 Sep 2012 15:56:24 +0000 http://www.chemicool.com/elements/?page_id=309#comment-797 Many thanks K. That was a typo, which we’ve now corrected.

]]> http://www.chemicool.com/elements/copper.html#comment-754 K Fri, 21 Sep 2012 19:55:00 +0000 http://www.chemicool.com/elements/?page_id=309#comment-754 I count only 2 isotopes that are stable – it it 2 or 4?

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