Cerium (Ce) Properties |
ACerium (ACe)
Properties 1/ |
Nuclear (58 protons/electrons)
- Atomic Number: 58
- Atomic Mass: 140.116
- Atomic Energy: 0.209 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius:1.65 Angstroms
- Atomic Radius: 2.70 Angstroms
- Atomic Volume: 20.67 cm3mol-1
- 37
Isotopes: 119Ce to 157Ce
- Stable Isotopes: 136Ce, 138Ce,
140Ce, 142Ce
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Nuclear (58 Aprotons/positrons)
- Atomic Number: 58
- Atomic Mass: 140.116
- Atomic Energy: 0.209 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius:1.65 Angstroms
- Atomic Radius: 2.70 Angstroms
- Atomic Volume: 20.67 cm3mol-1
- 37 A Isotopes: 119ACe
to 157ACe
- Stable AIsotopes:
136ACe, 138ACe, 140ACe, 142ACe
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Physical
- Soft light silvery-white metal
- Density: 6.78 g cm-3
- Melting Point: 795 oC
- Boiling Point: 3,257 oC
- Specific Heat: 0.19 J g-1 K-1
- Heat of Vaporization: 414 kJ mol-1
- Heat of Fusion: 5.46 kJ mol-1
- Electrical Conductivity: 0.0115 106 cm-1 Ohm-1
- Thermal Conductivity: 0.114 W cm-1 K-1
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Physical
- Soft light silvery-white metal
- Density: 6.78 g/cm-3
- Melting Point: 795 oC
- Boiling Point: 3,257 oC
- Specific Heat: 0.19 J g-1 K-1
- Heat of Vaporization: 414 kJ mol-1
- Heat of Fusion: 5.46 kJ mol-1
- Electrical Conductivity: 0.0115 106 cm-1 Ohm-1
- Thermal Conductivity: 0.114 W cm-1 K-1
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Chemical
- Valance Number: +3, +4
- Electron Configuration: 2,8,18,19,9,2
- Electronegativity: 1.12
- 1st Ionization Potential: 5.5 Volts
- 2nd Ionization Potential: 10.8 Volts
- 3rd Ionization Potential: 20.2 Volts
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Chemical
- Valance Number: -3, -4
- Positron Configuration: 2,8,18,19,9,2
- Positronpositivity: 1.12
- 1st Ionization Potential: 5.5 Volts
- 2nd Ionization Potential: 10.8 Volts
- 3rd Ionization Potential: 20.2 Volts
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Identified by Gustov
Kirchoff &
Robert Bunsen
Germany in1860
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Identified by Norm Hansen in 2001
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