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Californium is a radioactive element that is made in laboratories.
It is a very rare element, and there is only a very small amount of it in the world.
Californium is used in some medical treatments and in research.
Californium is a synthetic element that is not found in nature.
Singular: californium.
Plural: californiums.
Possessive: californium's.
The word "californium" comes from the name of the state of California, where it was first synthesized. The element was named by Glenn T. Seaborg, who was one of the scientists who discovered it.
What is californium?