Cf

Californium

Actinide

Californium is a radioactive metallic element that is an extremely powerful neutron emitter. It is one of the most expensive substances on Earth.

Key Facts

Atomic Number
98
Atomic Weight
251
State
Solid
Half-life
898 years (Cf-251)
Discovered
1950
Glenn T. Seaborg, Albert Ghiorso, Kenneth Street Jr., Stanley G. Thompson

Overview

Description

Californium is a radioactive metallic element that is an extremely powerful neutron emitter. It is one of the most expensive substances on Earth.

Discovery

Californium was discovered in 1950 by Glenn T. Seaborg, Albert Ghiorso, Kenneth Street Jr., Stanley G. Thompson.