Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,25,9,2 Orbitals: [Rn] 5f7 6d1 7s2 Electronegativity: 1.2, -- 1. Ionization potential: 6.02 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 4,3 Electrical conductivity: --		Melting point: 1340 °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: 15.0 kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: 0.1 W/cmK		Atomic radius: -- Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: 18.28 cm³/mol Density (293 K): 13.5 g/cm³ Crystal structure: Hexagonal

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
241Cm	0	241	1/2	32.8d	EC,	View
242Cm	0	242.059	0	162.8d		View
243Cm	0	243.061	5/2	29.1y	,EC	View
244Cm	0	244.063	0	18.1y		View
245Cm	0	245.066	7/2	8.5E03y		View
246Cm	0	246.067	0	4.76E03y	,SF	View
247Cm	0	247.07	9/2	1.56E07y		View
248Cm	0	248.072	0	3.48E05y	,SF	View
249Cm	0	249	1/2	1.069h	-	View
250Cm	0	250	0	~9.7E03y	SF	View

Legend

Name origin:	Named in honor of Pierre and Marie Curie.
Description:	Silvery, malleable, synthetic radioactive metal.
Discovered by:	G.T.Seaborg, R.A.James, A.Ghiorso
Year:	1944
Place:	United States
Sources:	Made by bombarding plutonium with helium ions. So radioactive it glows in the dark.
Use(s):	It has no significant commercial applications.