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ununhexium

[uhn-uh n-hek-see-uh m]

noun Chemistry.

former name of livermorium. Symbol: Uuh

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Why is a new element named after a suburb of San Francisco?

On Saturday the International Union of Pure and Applied Chemistry proposed the names of two new elements. Currently element number 114 and element number 116 do not have official names in the periodic table of elements. The elements were previously known as ununquadium and ununhexium. Those long, unpronounceable words were the temporarily used systematic element names. The names are generated from their atomic number, but …

Also called element 116.

livermorium

[liv-er-mawr-ee-uh m, -mohr-]

noun Chemistry, Physics.

a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Lv; atomic number: 116.

Origin of livermorium

named after Lawrence Livermore National Laboratory, which participated in its creation; see -ium

Formerly ununhexium, element 116.

element 116

noun Chemistry, Physics.

Formerly ununhexium.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019