Californium is radioactive and all the applications of it involve its radioactivity rather than its chemitry, so you might find it in neutron moisture guages for example.
At room temperature californium is a solid metal.
Californium is able to form a critical mass.
Californium is a metal.
Cf from CaliFornium
Californium is an artificial element; but infinitesimal amounts of natural californium can exist in uranium ores.
Some smoke detectors contain californium. It a radioactive neutron emitter and is a man made element.
At room temperature californium is a solid metal.
Not californium, but neutrons emitted by californium.
Californium is radioactive and a strong neutrons emitter; californium can be lethal.
Californium is able to form a critical mass.
Californium is not flammable.
Californium is a metal.
Californium is not crucial.
Californium is not flammable.
Californium is a metal.
Californium is not flammable.
Probably californium has a silvery white appearance but the pure metal was not obtained.