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Californium


7
98
251.0796
KEY
Chemical Element Symbol Key

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Californium
Columbia Encyclopedia
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Symbol: Cf
Atomic Number: 98
Atomic Weight: 251.0796
Element Classification: Radioactive Rare Earth Element (Actinide Series)
Discovered By: G.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
Discovery Date: 1950 (United States)
Name Origin: Named after the state and University of California.
Density (g/cc): 15.1
Melting Point (K): 900
Boiling Point (K): n/a
Appearance: Powerful neutron emitter
Atomic Radius (pm): 295
Atomic Volume (cc/mol): n/a
Covalent Radius (pm): n/a
Ionic Radius: n/a
Specific Heat (@20°C J/g mol): n/a
Fusion Heat (kJ/mol): n/a
Evaporation Heat (kJ/mol): n/a
Thermal Conductivity (@25°C W/m K):
Debye Temperature (K): n/a
Pauling Negativity Number: 1.3
First Ionizing Energy (kJ/mol): (610)
Oxidation States: 4, 3
Electronic Configuration: [Rn] 5f10 7s2
Lattice Structure: n/a
Lattice Constant (Å): n/a
Lattice C/A Ratio: n/a


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