working to make science better For the 118 indvidual WIS elements, GO to MORE in the menu above . . .
Rutherfordium Rf
Where is rutherfordium used--or where does it impact your everyday life?
Rutherfordium is a synthetic element--made in very small quantities
Rutherfordium Rf
Atomic mass: (261) At #: 104
Periodic Table: period: 7, group: 4
Melting point: 2100oC (3800oF) [predicted]
Boiling point: 5500oC (9900oF) [predicted]
Density: 23.2 g cm-3 (=g/mL) [predicted]
Unstable isotopes: rutherfordium-253 (48 microseconds), 254 (23 microseconds), 255 (2.3 seconds), 256 (6.4 milliseconds), 257 (4.1 and 4.7 seconds), 258 (14.7 milliseconds) , 259 (2.5 and 3.2 seconds), 260 (21 milliseconds), 261 (1.9 seconds), 262 (2.3 seconds), 263 (10 minutes), 264, 265, 266, 267, 268.
Electron configuration: [Rn] 5f14 6d2 7s2 and 2, 8, 18, 32, 32, 10, 2
LANL.gov nndc.bnl.gov
Researcher: Eleonore V
