Californium

98
Cf
251

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Cf Californium 98 251

Description

Standard State: solid at 298 K
Color: unknown

Californium is the sixth transuranium element and was produced by Thompson, Street, Ghiorso, and Seaborg in 1950. Californium should be handled with care because it is a radioactive rare earth metal named after the state of California and the University of California. It has been suggested that Californium is produced in certain stellar explosions, such as a supernova, but is questionable.