Lawrencium

Metal

synthetic

Symbol: Lr
Atomic number: 103
Atomic mass: (262.1098)
Group: Transition Metal
CAS-number: 22537-19-5

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Lu

No				Rf

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Electronic data

Shells: 2, 8, 18, 32, 32, 9, 2
Orbitals: [Rn] 5f¹⁴ 6d¹ 7s²
Electronegativity: --, --
1. Ionization potential: -- 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	Halflife	Decay mode	Decay tree
²⁵⁴Lr	254.096	13s	α, EC	View
²⁵⁶Lr	256.099	28s	α, EC, SF	View
²⁵⁷Lr	257.1	0.65s	α, EC	View
²⁵⁸Lr	258.102	4.3s	α	View

Name origin:	Named in honor of Ernest O. Lawrence, inventor of the cyclotron.
Description:	Synthetic radioactive metal.
Discovered by:	A.Ghiorso, T.Sikkeland, A.E.Larsh, R.M.Latimer
Year:	1961
Place:	United States
Sources:	Produced by bombarding californium with boron ions.
Use(s):	It has no significant commercial applications.

Lawrencium

Physical data

Electronic data

Thermal data

Steric data

Isotopes

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