Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,31,8,2 Orbitals: [Rn] 5f13 7s2 Electronegativity: 1.2, -- 1. Ionization potential: 6.58 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 3 Electrical conductivity: --		Melting point: -- °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: -- kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: 0.1 W/cmK		Atomic radius: -- Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: -- cm³/mol Density (293 K): -- g/cm³ Crystal structure: --

Legend     Pocket calculator

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
250Md	0	250	0	50s	EC,	View
252Md	0	252.087	0	2m	EC,	View
253Md	0	253.087	?	?	?	View
254Md	0	254	0	10m	EC	View
255Md	0	255.091	7/2	27m	EC,	View
258Md	0	258.099	8	51.5d		View

Legend

Name origin:	Named in honor of the scientist Dmitri Ivanovitch Mendeleyev, who devised the periodic table.
Description:	Synthetic radioactive metal.
Discovered by:	G.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
Year:	1955
Place:	United States
Sources:	Made by bombarding einsteinium with helium ions.
Use(s):	It has no significant commercial applications.