Interesting info on californium

Answer 1

Physical properties of californium
- Atomic number: 98 - Isotopes: 20 - Isomers: 1 - Electron configuration: [Rn]5f10.7s2 - Electrons per shell: 2, 8, 18, 32, 28, 8, 2 - Thermal conductivity: - Electrical resistivity: - Mohs hardness: 3-4 - Californium is malleable - Californium is paramagnetic at room temperature - Melting point: 900 0C - Boiling point (estimated): 1 470 0C - Density: !5,1 g/cm3 - First ionization energy: 608 kJ/mol - Crystalline structure (at r.m.): double hexagonal close-packed - Bulk modulus: 50 ± 5 GPa

Answer 2

Californium is a radioactive metallic chemical element with the symbol Cf and atomic number 98. It is produced artificially in nuclear reactors and is one of the heaviest elements that can be produced in macroscopic quantities. Californium is primarily used for research purposes, such as in neutron activation analysis and as a neutron source for nuclear reactors.

Answer 3

Californium is dangerous because is very radioactive and also a strong neutrons emitter.