Lawrencium (Lr) Properties |
ALawrencium (ALr)
Properties 1/ |
Nuclear (103 protons/electrons)
- Atomic Number: 103
- Atomic Mass: 262
- Atomic Energy: 0.391 Ergs
- Group: 3; Period: 7
- Family: Rare Earth:
Actinide Series
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 13 Isotopes:
251Lr to 263Lr
- Stable Isotopes: None
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Nuclear (103 Aprotons/positrons)
- Atomic Number: 103
- Atomic Mass: 262
- Atomic Energy: 0.391 Ergs
- Group: 3; Period: 7
- Family: Rare Earth:
Actinide Series
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 13 AIsotopes: 251ALr
to 263ALr
- Stable AIsotopes: None
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Physical
- Man made radioactive metal
- Density: ? g cm-3
- Melting Point: ? oC
- Boiling Point: ? oC
- Specific Heat: ? J g-1 K-1
- Heat of Vaporization: ? kJ mol-1
- Heat of Fusion: ? kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.1 W cm-1 K-1
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Physical
- Radioactive metal
- Density: ? g/cm-3
- Melting Point:? oC
- Boiling Point: ? oC
- Specific Heat: ? J g-1 K-1
- Heat of Vaporization: ? kJ mol-1
- Heat of Fusion: ? kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.1 W cm-1 K-1
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Chemical
- Valance Number: +3
- Electron Configuration: 2,8,18,32,32,9,2
- Electronegativity: ?
- 1st Ionization Potential: ? Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Chemical
- Valance Number: -3
- Positron Configuration: 2,8,18,32,32,9,2
- Positronpositivity: ?
- 1st Ionization Potential: ? Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Identified by A.
Ghiorso, T. Sikkeland,
A. E. Larsh, and R. M. Latimer
United States in 1961
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Identified by Norm Hansen in 2001
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