Dubnium (Db) Properties |
ADubnium (ADb)
Properties 1/ |
Nuclear (105 protons/electrons)
- Atomic Number: 105
- Atomic Mass: 262
- Atomic Energy: 0.391 Ergs
- Group: 5; Period: 7
- Family: Transition
Metals
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 11
Isotopes: 255Db
to 265Db
- Stable Isotopes: None
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Nuclear (105 Aprotons/positrons)
- Atomic Number: 105
- Atomic Mass: 262
- Atomic Energy: 0.391 Ergs
- Group: 5; Period: 7
- Family: Transition
Metals
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 11 AIsotopes: 255ADb
to 265ADb
- 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: 0.58 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: 0.58 W cm-1 K-1
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Chemical
- Valance Number: ?
- Electron Configuration: 2,8,18,32,32,11,2
- Electronegativity:
- 1st Ionization Potential: ? Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Chemical
- Valance Number: ?
- Positron Configuration: 2,8,18,32,32,11,2
- Positronpositivity:
- 1st Ionization Potential: ? Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Identified
by A. Ghiorso et al
United States in 1970
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Identified by Norm Hansen in 2001
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