Template:Infobox curium

Curium,  ₉₆Cm

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General properties
Pronunciation	Template:Infobox element/pronunciation
Appearance	silvery metallic, glows purple in the dark
Standard atomic weight (Ar, standard)	Template:Infobox element/standard atomic weight
Mass number	Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Curium in the periodic table
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Atomic number (Z)	96
Group	Template:Infobox element/group
Period	period 7
Block	f-block
Element category	Template:Infobox element/category format
Electron configuration	[Rn] 5f7 6d1 7s2
Electrons per shell	2, 8, 18, 32, 25, 9, 2
Physical properties
Phase at STP	solid
Melting point	1613 K ​(1340 °C, ​2444 °F)
Boiling point	3383 K ​(3110 °C, ​5630 °F)
Density (near r.t.)	13.51 g/cm3
Heat of fusion	13.85 kJ/mol
[[Vapor pressure|Template:Engvar pressure]] Template:Infobox element/vapor pressure table
Atomic properties
Oxidation states	Template:Infobox element/symbol-to-oxidation-state
Electronegativity	Pauling scale: 1.3
[[Ionization energy|Template:Engvar energies]]	1st: 581 kJ/mol
Atomic radius	empirical: 174 pm
Covalent radius	169±3 pm
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Other properties
Crystal structure	​Template:Infobox element/crystal structure Template:Infobox element/crystal structure
Electrical resistivity	1.25 µΩ·m
Magnetic ordering	antiferromagnetic-paramagnetic transition at 52 K
CAS Number	7440-51-9
History
Naming	named after Marie Skłodowska-Curie and Pierre Curie
Discovery	Glenn T. Seaborg, Ralph A. James, Albert Ghiorso (1944)
Main isotopes of curium
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