Facts about the Classification of the Element Californium
Californium classified as an element in the Actinide series as one of the "Rare Earth Elements" which can located in Group 3 elements of the Periodic Table and in the 6th and 7th periods. The Rare Earth Elements are of the Lanthanide and Actinide series. Most of the elements in the Actinide series are synthetic or man-made.

Brief Facts about the Discovery and History of the Element Californium
Californium was discovered by Stanley Thompson, Kenneth Street, Jr., Albert Ghiorso and Glenn T. Seaborg in 1950 in the USA. The discovery is credited to Glenn T. Seaborg.

Occurrence of the element Californium
Man-made

Common Uses of Californium
Neutron moisture gauges
Portable neutron source in gold and silver prospecting

The Properties of the Element Californium
Name of Element : Californium
Symbol of Element : Cf
Atomic Number: 98
Atomic Mass: (251.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 98
Number of Neutrons: 153
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown