The heaviest element that humans have ever found is called oganesson. Each atom of the stuff packs a whopping 118 protons into its dense center. In contrast, hydrogen—the most abundant element in the ...

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The International Union of Pure and Applied Chemistry has approved the name and symbols for four elements: nihonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og), respectively for element ...

The rare radioactive substance made its way from the United States to Russia on a commercial flight in June 2009. Customs officers balked at accepting the package, which was ensconced in lead ...

When Dmitri Mendeleev first put together the periodic table, he left blank spots for elements that weren’t yet discovered. He’d probably be quite surprised, however, to learn that we’ve now identified ...

Nihonium, moscovium, tennessine, and oganesson are the permanent names for elements 113, 115, 117, and 118, the International Union of Pure & Applied Chemistry (IUPAC) announced today. IUPAC ...

Initially dedicated at the Lawrence Berkeley National Laboratory in Berkeley, California, on March 11, 2000. Rededicated at Lawrence Hall of Science in Berkeley on August 11, 2019, during the ...

James Tickner does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...