Helvetium

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1Periodic table / Transition metals / Astatine / Hafnium / Francium / Henry Moseley / Rhenium / Ida Noddack / Helvetium / Chemistry / Matter / Chemical elements

A Tale of Seven Elements, by Eric Scerri 15 AUGUST 2013

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Source URL: ericscerri.com

Language: English - Date: 2013-11-06 16:54:45