Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,24,8,2 Orbitals: [Rn] 5f6 7s2 Electronegativity: 1.2, -- 1. Ionization potential: 6.06 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 6,5,4,3 Electrical conductivity: 0.00666 10^6		Melting point: 641 °C Boiling point: 3232 °C Specific heat: 0.13 J/gK Heat of fusion: 2.840 kJ/mol Heat of vaporization: 344.0 kJ/mol Thermal conductivity: 0.0674 W/cmK		Atomic radius: -- Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: 12.32 cm³/mol Density (293 K): 19.8 g/cm³ Crystal structure: Monoclinic

Legend     Pocket calculator

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
236Pu	0	236.046	0	2.87y	,SF	View
237Pu	0	237.048	7/2	45.2d	EC,	View
238Pu	0	238.05	0	87.7y	,SF	View
239Pu	0	239.052	1/2	2.41E04y	,SF	View
240Pu	0	240.054	0	6.56E03y	,SF	View
241Pu	0	241.057	5/2	14.4y	-,	View
242Pu	0	242.059	0	3.75E05y	,SF	View
243Pu	0	243	7/2	4.956h	-	View
244Pu	0	244.064	0	8.0E07y	,SF	View
245Pu	0	245	9/2	10.5h	-	View
246Pu	0	246	0	10.85d	-	View

Legend

Name origin:	Named for the planet Pluto.
Description:	Silvery-white, extremely radioactive artificially produced metal.
Discovered by:	G.T.Seaborg, J.W.Kennedy, E.M.McMillan, A.C.Wohl
Year:	1940
Place:	United States
Sources:	Found rarely in some uranium ores. Made by bombarding uranium with neutrons.
Use(s):	Used in bombs and reactors. Small quantities are used in thermo-electric generators.