Californium was first synthesized at the University of California, Berkeley by the physics researchers Stanley G. Thompson, Kenneth Street, Jr., Albert Ghiorso, and Glenn T. Seaborg on or about February 9, 1950. The team announced its discovery on March 17, 1950
I think in 1876,but not sure.
Not californium, but neutrons emitted by californium.
All the isotopes of californium are radioactive, artificial and unstable.
Californium is radioactive and a strong neutrons emitter; californium can be lethal.
Californium has 98 protons.
Californium is a metal.
Californium is not flammable.
Californium is not crucial.
Californium is a metal.
Californium is not flammable.
Californium is not flammable, as it is a radioactive metal that does not support combustion.
Californium is a soft metal.