Californium is not for everyday uses.
Californium has not uses in everyday life.
When you go to your local nuclear facility and eat the waste infected soil surrounding it, you may "bump into" traces of californium. This however is NOT a GOOD IDEA, for Cf is a strong emitter of neutrons. You should strenuously avoid contact with this material.
No, I do not see a cow every day of my life.
to see
You can see them all, if you know where to look
Geometry is used in my everyday life because I see it everyday. Everything I see is practically geometry. There are posters on my classroom wall, there are desks and chairs, tables, and a big nice white board. I guess this is really how I used geometry in my everyday life.
Being radioactive californium is unstable.
a stop sign
Car door handles
The atomic number of californium is 98. The atomic mass of the most stable isotope - 251Cf - is (251) after IUPAC.
Not californium, but neutrons emitted by californium.
Californium is a radioactive element with a half-life of around 2.6 years, and it decays through spontaneous fission. At room temperature, it would emit alpha particles and gamma rays as it undergoes radioactive decay. Due to its radioactivity, Californium is not stable and can be harmful to living organisms if mishandled.