Lutetium (Lu) Properties |
ALutetium (ALu)
Properties 1/ |
Nuclear (71 protons/electrons)
- Atomic Number: 71
- Atomic Mass: 174.967
- Atomic Energy: 0.261 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius: 1.56 Angstroms
- Atomic Radius: 2.25 Angstroms
- Atomic Volume: 17.78 cm3mol-1
- 35
Isotopes: 150Lu to 184Lu
- Stable Isotopes: 175Lu,
176Lu
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Nuclear (71 Aprotons/positrons)
- Atomic Number: 71
- Atomic Mass: 174.967
- Atomic Energy: 0.261 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius: 1.56 Angstroms
- Atomic Radius: 2.25 Angstroms
- Atomic Volume: 17.78 cm3mol-1
- 35 AIsotopes: 150ALu
to 184ALu
- Stable AIsotopes: 175ALu,
176ALu
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Physical
- Silvery metal
- Density: 9.85 g cm-3
- Melting Point: 1,656 oC
- Boiling Point: 3,315 oC
- Specific Heat: 0.15 J g-1 K-1
- Heat of Vaporization: 355.9 kJ mol-1
- Heat of Fusion: 18.6 kJ mol-1
- Electrical Conductivity: 0.0185 106 cm-1 Ohm-1
- Thermal Conductivity: 0.164 W cm-1 K-1
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Physical
- Silvery metal
- Density: 9.85 g/cm-3
- Melting Point: 1,656 oC
- Boiling Point: 3,315 oC
- Specific Heat: 0.15 J g-1 K-1
- Heat of Vaporization: 355.9 kJ mol-1
- Heat of Fusion: 18.6 kJ mol-1
- Electrical Conductivity: 0.0185 106 cm-1 Ohm-1
- Thermal Conductivity: 0.164 W cm-1 K-1
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Chemical
- Valance Number: +3
- Electron Configuration: 2,8,18,32,9,2
- Electronegativity: 1.27
- 1st Ionization Potential: 5.4 Volts
- 2nd Ionization Potential: 13.9 Volts
- 3rd Ionization Potential: 21.0 Volts
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Chemical
- Valance Number: -3
- Positron Configuration: 2,8,18,32,9,2
- Positronpositivity: 1.27
- 1st Ionization Potential: 5.4 Volts
- 2nd Ionization Potential: 13.9 Volts
- 3rd Ionization Potential: 21.0 Volts
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Identified by Georges Ubrain
France in 1907
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Identified by Norm Hansen in 2001
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