97 Bk Berkelium
Atomic Weight: 247.0703Shells: 2,8,18,32,26,9,2
Group: Rare Earth MetalFilling orbital: 5f 8
Crystal Structure: ?Covalent radius: ?
Oxidation States: +3, +4Atomic radius: ?
Electronegativity, Pauling: 1.3Atomic volume: ? cm³/mol
State at RT: SolidFirst ionization potential: 6.23 V
Melting Point: ? °K2nd ionization potential: ?
Boiling Point: ? °K3rd ionization potential: ?
Density @ 293°K: ? g/cm³Specific heat: ? J/gK
Electrical conductivity: ? 106/cm ohm Heat of vaporization: ? kJ/mol
Thermal conductivity: 0.1 W/cmK Heat of fusion: ? kJ/mol
Element Nuclides
NuclideAbundance WeightSpinHalf-Life Decay Modes
Bk2420.%242.07m, +
Bk2440.%244.14.4h,
Bk2450.%245.1.54.94d,
Bk2470.%247.07031.51.4E03y
Bk2480.%248.-123.7h-,
Bk2490.%249.3.5320d-, , SF
Bk2500.%250.23.217h-
Bk2510.%251.1.556m-

Name origin: After Berkeley the home town of the University of California.
Description: Man made radioactive metal.
Discovered by: G.T.Seaborg, S.G.Tompson, A.Ghiorso
Year: 1949
Location: United States
Sources: Some compounds have been made and studied. Made by bombarding americium with alpha particles.
Uses: ?


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