Element 118 received the name oganesson by the International Union of Pure and Applied Chemistry (IUPAC) in June 2016. Oganesson has the symbol Og. The element is named for Yuri Oganesson (b. 1933), a lead researcher at the Joint Institute for Nuclear Research in Dubna, Russia. The element was discovered in a collaborative effort between the Joint Institute and Lawrence Livermore National Laboratory in California.
Oganesson is the second element to be named after a living person, the other being seaborgium, named for American chemist Glenn Seaborg, the discoverer of plutonium.
New IUPAC guidelines formulated in 2016 require new elements be named after either a mythological character or concept (or an astronomical object named after such a mythological concept), a mineral, a place, or a scientist. Elements in columns 1–16 of the periodic table take the usual suffix -ium. Those in column 17 take the suffix -ine, and those in column 18 the suffix -on. Oganesson is in column 18, hence the -on ending. Of course, older names for elements may not conform to these guidelines.
Source: “IUPAC is Naming the Four New Elements Nihonium, Moscovium, Tennessine, and Oganesson.” IUPAC press release. 8 June 2016.
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