oganessium

English

Noun

oganessium (uncountable)

1. A rejected name for oganesson

Usage notes

According to IUPAC guidelines in place in 2006, when said element was discovered, all new elements should have names ending in -ium. However, by the time oganesson was named (2016), IUPAC had changed its mind, hence the name oganesson, rather than oganessium.

See also

• tennessium