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Berkelium

97
Bk
(247)
Berkelium
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Berkelium Symbol: Bk
Group: Rare Earth, Actinides Atomic weight: (247)
Density @ 293 K: ? Atomic volume: ?
Group: Rare Earth, Actinides discovered: 1949

States:

state (s, l, g): s
melting point: 1259.2 K boiling point: K
Heat of fusion: ? Heat of vaporization: ?

Energies:

1st ionization energy: 601 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: 2,8,18,32,26,9,2 electron configuration: [Rn] 5f9 7s2
minimum oxidation number: 0 maximum oxidation number: 4
min. common oxidation no.: 0 max. common oxidation no.: 3

Appearance & Characteristics:

structure: fcc: face-centered cubic color: silvery
uses: 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): BkO Bk2O3 BkO2 chloride(s): BkCl3

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 170 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): 110 pm

Conductivity:

thermal conductivity: J/m-sec-deg
electrical conductivity: 1/mohm-cm polarizability: 22.7 A^3

Abundance:

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