Chemicool
Pu
94
(244)
Plutonium
General
|
States
|
Energies
|
Oxidation & Electrons
|
Appearance & Characteristics
Reactions
|
Other Forms
|
Radius
|
Conductivity
|
Abundance
Encyclopedia Britannica articles
General
Name
Plutonium
Symbol
Pu
atomic number
94
Atomic weight
(244)
Density @ 293 K
19.8 g/cm3
Atomic volume
12.32 cm3/mol
Group
Rare Earth, Actinides
discovered
1940
States
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
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Energies
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
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Appearance & Characteristics
structure
fcc: face-centered cubic
color
silvery
uses
weapon fuel, pacemakers
toxicity
hardness
mohs
characteristics
Radioactive
Reactions
reaction with air
reaction with 6M HCl
reaction with 6M HCl
reaction with 15M HNO3
passivated
reaction with 6M NaOH
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Other Forms
number of isotopes
0
hydride(s)
PuH2 PuH3
oxide(s)
PuO Pu2O3 PuO2
chloride(s)
PuCl2 PuCl3
Radius
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
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Conductivity
thermal conductivity
6.3 J/m-sec-deg
electrical conductivity
7.072 1/mohm-cm
polarizability
24.5 A^3
Abundance
source
Synthetic
rel. abund. solar system
log
abundance earth's crust
log
cost, pure
$/100g
cost, bulk
$/100g
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