California (English: Californium) 98th Elemental Elements of Periodic Table California's molecular signal Cf.
Isotope
All isotopes of the California are radioactive. The most stable isotopes are prepared from berkelium-249 and California-250 isotopes. Some stable isotopes are:
California-249 (half-year 360 years)
California-250 (half yearly 13 years)
California-215 (half-year 800 years)
California-522 (half yearly 2.65 years)
It is most valuable chemical element in world.