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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

 

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