Mendelevium

Metal

synthetic

Symbol: Md
Atomic number: 101
Atomic mass: (258.0984)
Group: Actinide
CAS-number: 7440-11-1

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Tm

Fm				No

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Electronic 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: --

Thermal data

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

Steric data

Atomic radius: -- Å
Ionic radius: -- Å
Covalent radius: -- Å
Atomic volume: -- cm³/mol
Density (293 K): -- g/cm³
Crystal structure: --

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

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.

Mendelevium

Physical data

Electronic data

Thermal data

Steric data

Isotopes

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