un·nil·qua·di·um /-ˈkwɑdiəm/
unnilquadium
n : a radioactive transuranic element which has been synthesized
[syn: rutherfordium, Rf, kurchatovium, Ku, Unq,
element 104, atomic number 104]
unnilquadium
Symbol: Unq
Atomic number: 104
Atomic weight: (261)
Radioactive transactinide element. Expected to have similar chemical
properties to those displayed by hafnium. Rf-260 was discovered by the
Joint Nuclear Research Institute at Dubna (U.S.S.R.) in 1964. Researchers
at Berkeley discovered Unq-257 and Unq-258 in 1964.