Cf - Californium

Discovered by Thompson, Ghiorso, Seaborg and Street in 1950, Berkeley.

Atomic number - 98 Density g/mL -
Atomic weight u 251 Melting point K 900
Bonding radius A - Boiling point K -
Atomic radius A - Heat of vaporization kJ/mol -
Ionization Potential V 6 .3 Heat of fusion kJ/mol -
Electronegativity - 1 .3 Specific heat J/gK -
The oxide is unknown.
Crystal are unknown.

Electron config. : [Rn] 5f10 7s2


Isotopes of Cf: Click mass number for decay process, product for element page.


238
1 sec
SF,5.000 MeV
?
238.0
239
39 sec
a/EC,7.810
Cm-235/Bk-239
239.06256
240
1.06 min
a,7.719 MeV
Cm-236
240.06229
241
3.78 min
a/EC,3.300
Cm-237/Bk-241
241.06376
242
3.49 min
a,7.516 MeV
Cm-238
242.06369
243
10.7 min
a/EC,2.220
Cm-239/Bk-243
243.06537
244
19.4 min
a,7.329 MeV
Cm-240
244.06598
245
45.0 min
a/EC,1.569
Cm-241/Bk-245
245.06803
246
35.7 hr
a/EC/SF,6.862
Cm-242/Bk-246/?
246.06879
247
3.11 hr
a/EC,5.889
Cm-243/Bk-247
247.07099
248
333.5 da
a/SF,6.361
Cm-244/?
248.07217
249
351 yr
a/SF,6.295
Cm-245/?
249.07484
250
13.08 yr
a/SF,6.128
Cm-246/?
250.07639
251
898 yr
a,6.176 MeV
Cm-247
251.07957
252
2.645 yr
a/SF,6.217
Cm-248/?
252.08161
253
17.81 da
a/B-,9.150
Cm-249/Es-253
253.08512
254
60.5 da
a/SF,4.300
Cm-250/?
254.08731
255
85 min
B-,5.200 MeV
Es-255
255.09101
256
12.3 min
a/B-/SF,3.240
Cm-252/Es-256/?
256.0
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass