From Slate:A team of Russian and American scientists announced today the creation of several atoms of the previously unknown element 117. The discovery of "ununseptium" will eventually fill a longtime gap on the periodic table, although that formal change may not happen for years. In June 2009, element 112 was designated as an official element, more than a decade after it was first created. Sam Kean explained why changing the periodic table requires the scientific equivalent of a Supreme Court decision. His column is reprinted below.
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