Mendeleev's Periodic Table > Rf - Rutherfordium

Rf - Rutherfordium

This artifical element, named after Ernest Rutherford, was discovered by Ghiorso and coworkers.
Rutherfordium is a synthetic element that is not present in the environment at all. It has no uses.

Atomic number - 104 Density g/mL -
Atomic weight u 261 Melting point K -
Bonding radius A - Boiling point K -
Atomic radius A - Heat of vaporization kJ/mol -
Ionization Potential V - Heat of fusion kJ/mol -
Electronegativity - - Specific heat J/gK -
The oxide is unknown. Crystal are unknown.
Electron config. : [Rn] 5f14 6d2 7s2

Isotopes of Rf (Rutherfordium) :

MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 253
1.8 sec
a/SF,9.500
No-249/?
253.0 		254
0.5 msec
a/SF,9.500
No-250/?
254.0 		255
1.5 sec
a/SF,9.300
No-251/?
255.10150 		256
6.7 msec
a/SF,9.600
No-252/?
256.10118
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 257
4.7 sec
a/EC/SF,9.250
No-253/Lr-257/?
257.10327 		258
12 msec
a/SF,4.300
No-254/?
258.10347 		259
3.1 sec
a/EC/SF,9.110
No-255/Lr-259/?
259.10561 		260
20.1 msec
a/SF,9.870
No-256/?
260.10653
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 261
65 sec
a/EC/SF,8.810
No-257/Lr-261/?
261.10891 		262
1.2 sec
SF,10.560 MeV
?
262.11003 		263

,10.735 MeV

263.11272 		264

,9.690 MeV

264.11411
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 265

,10.800 MeV

265.11680 		266

,10.820 MeV

266.11851