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- Name : Unnilquadium
- Symbol : Rf or Unq
- Atomic # : 104
- Atom weight: 261 (Estimated value)
- Melting P. :
- Boiling P. :
- Oxidation : +4
- Pronounced : onn-nil-QUAD-i-em
- From : Suggested names and symbols are kurchatovium (Ku) and
- rutherfordium (Rf)
- Identified : Soviet Nuclear Research in 1964 and by the University of
- California at Berkeley in 1969
- Appearance : Radioactive, synthetic metal
-