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/americium.html#comment-3009 bklad Mon, 12 Nov 2012 18:26:23 +0000 http://www.chemicool.com/elements/?page_id=762#comment-3009 how many ions does this element have?

]]>