Periodic table's seventh row finally filled as four new elements are added: http://www.theguardian.com/science/2016/jan/04/periodic-tables-seventh-row-finally-filled-as-four-new-elements-are-added?CMP=fb_us …
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Periodic table's seventh row finally filled as four new elements are added: http://www.theguardian.com/science/2016/jan/04/periodic-tables-seventh-row-finally-filled-as-four-new-elements-are-added?CMP=fb_us …