Atomic number: 98
Density at 25°C: solid: density: 15.1 g·cm−3
This radioactive element was first created at the University of California, Berkeley, hence it's name in this case. It is mainly used as a powerful neutron emitter. It is also the heaviest element that occasional occurs in tiny amounts naturally in very concentrated uranium ores.
Use, natural applications or common combinations:
- neutron emitter for neutron spectroscopy and other measuring techniques.
- for formation of heavier elements.
- Standard atomic weight: (251)
- Melting point: 900 °C [±30°C depends on form]
- Boiling point: 1470 °C
- Radioactivity: all radioactive
- 251Cf with half life of 898 years via alpha only decay
- 249Cf half life of 351 years used for making heavier elements.