ununnilium

[ uhn-uh-nil-ee-uh m ]
/ ˌʌn əˈnɪl i əm /

noun Chemistry, Physics.

former name of darmstadtium. Symbol: Uun
Also called element 110.

Words nearby ununnilium

untwist, untwisted, untypical, ununbium, ununhexium, ununnilium, ununoctium, ununpentium, ununquadium, ununseptium, ununtrium

Definition for ununnilium (2 of 3)

darmstadtium
[ dahrm-stat-ee-uh m ]
/ dɑrmˈstæt i əm /

noun Chemistry, Physics.

a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Ds; atomic number: 110.
Formerly ununnilium, element 110.

Origin of darmstadtium

named after Darmstadt, the city in Germany where it was first created; see -ium

Definition for ununnilium (3 of 3)

element 110

noun Chemistry, Physics.

darmstadtium.
Formerly ununnilium.

Scientific definitions for ununnilium

darmstadtium
[ därm′shtät′ē-əm ]

Ds

A synthetic radioactive element, first produced by bombarding lead atoms with nickel atoms. It has a mass number of 281, and its most stable isotope has a half-life of over one minute. Atomic number 110. See Periodic Table.