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Californium

98
Cf
(251)
Californium
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Californium Symbol: Cf
Group: Rare Earth, Actinides Atomic weight: (251)
Density @ 293 K: ? Atomic volume: ?
Group: Rare Earth, Actinides discovered: 1949

States:

state (s, l, g):
melting point: 1173.2 K boiling point: K
Heat of fusion: ? Heat of vaporization: ?

Energies:

1st ionization energy: 608 kJ/mole
electronegativity: 1.3 2nd ionization energy: kJ/mole
electron affinity: kJ/mole 3rd ionization energy: kJ/mole
Specific heat: ? heat atomization: kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,28,8,2 electron configuration: [Rn] 5f10 7s2
minimum oxidation number: 0 maximum oxidation number: 4
min. common oxidation no.: 0 max. common oxidation no.: 3

Appearance & Characteristics:

structure: color:
uses: neutron source toxicity:
hardness: mohs characteristics: Radioactive

Reactions:

reaction with air:
reaction with 6M HCl: reaction with 6M HCl:
reaction with 15M HNO3: reaction with 6M NaOH:

Other Forms:

number of isotopes: 0 hydride(s):
oxide(s): CfO Cf2O3 CfO2 chloride(s): CfCl3

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 186 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): 109 pm

Conductivity:

thermal conductivity: J/m-sec-deg
electrical conductivity: 1/mohm-cm polarizability: 20.5 A^3

Abundance:

source: Synthetic
rel. abund. solar system: log abundance earth's crust: log
cost, pure: $/100g cost, bulk: $/100g