Wectar - Science - Chemistry - Elements - Roentgenium

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	IUPAC: Roentgenium URL: http://www.iupac.org/news/archives/2004/naming111.html ODP description: A note about confirmation of synthesis of the element 111. Page title: International Union of Pure and Applied Chemistry
	Wikipedia: Roentgenium URL: http://en.wikipedia.org/wiki/Roentgenium ODP description: Basic physical and historical information. Page title: Roentgenium - Wikipedia, the free encyclopedia
	Apsidium: Roentgenium URL: http://www.apsidium.com/elements/111.htm ODP description: Basic information and atomic structure. Page title: Roentgenium 111

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