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Name: Plutonium Symbol: Pu
Group: Rare Earth, Actinides Atomic weight: (244)
Density @ 293 K: 19.8 g/cm3 Atomic volume: 12.32 cm3/mol
Group: Rare Earth, Actinides discovered: 1940


state (s, l, g): s
melting point: 914.2 K boiling point: 3503 K
Heat of fusion: 2.840 kJ/mol Heat of vaporization: 344.0 kJ/mol


1st ionization energy: 585 kJ/mole
electronegativity: 1.3 2nd ionization energy: kJ/mole
electron affinity: kJ/mole 3rd ionization energy: kJ/mole
Specific heat: 0.13 J/gK heat atomization: 352 kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,24,8,2 electron configuration: [Rn] 5f6 7s2
minimum oxidation number: 0 maximum oxidation number: 7
min. common oxidation no.: 0 max. common oxidation no.: 4

Appearance & Characteristics:

structure: fcc: face-centered cubic color: silvery
uses: weapon fuel, pacemakers toxicity:
hardness: mohs characteristics: Radioactive


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

Other Forms:

number of isotopes: 0 hydride(s): PuH2 PuH3
oxide(s): PuO Pu2O3 PuO2 chloride(s): PuCl2 PuCl3


ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 159 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): 114 pm


thermal conductivity: 6.3 J/m-sec-deg
electrical conductivity: 7.072 1/mohm-cm polarizability: 24.5 A^3


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