Stable isotope Californium (Cf)

Isotope Atomic Mass Half-life Mode of Decay Nuclear Spin Nuclear Magnetic Moment
Cf-248 248.07218 334 days α to Cm-244; SF 0 No data available
Cf-249 249.07485 351 years α to Cm-245; SF 9/2 No data available
Cf-250 250.07640 13.10 years α to Cm-246; SF 0 No data available
Cf-251 251.079580 898 years α to Cm-247 1/2 No data available
Cf-252 252.08162 2.64 years α to Cm-248; SF 0 No data available
Cf-253 253.08513 17.80 days α to Cm-249; ß- to Es-253 7/2 No data available
Cf-254 254.08732 60.50 days α to Cm-250; SF 0 No data available
Cf-255 255.0910 1.40 hours ß- to Es-255 No data available No data available

Properties of Californium

Name Californium
Symbol Cf
Atomic number 98
Atomic weight [251]
Standard state Solid at 298 °K
CAS Registry ID 7440-71-3
Group in periodic table N/A
Group name Actinoid
Period in periodic table 7 (Actinoid)
Block in periodic table f-block
Color Unknown, but probably metallic and silvery white or grey in appearance
Classification Metallic
Melting point 1173 °K [or 900 °C or 1652 °F]
Boiling point No data available
Density of solid 15.1 g/cm3
Electron configuration [Rn]5f107s2