Zirconium (Zr) Properties |
AZirconium (AZr)
Properties |
Nuclear (40 protons/electrons)
- Atomic Number: 40
- Atomic Mass: 91.224
- Atomic Energy: 0.136 Ergs
- Group: 4; Period: 5
- Family: Transition
Metals
- Bonding Radius: 1.45 Angstroms
- Atomic Radius: 2.16 Angstroms
- Atomic Volume: 14.1 cm3mol-1
- 30 Isotopes:
79Zr
to 110Zr
- Stable Isotopes: 90Zr ,
91Zr , 92Zr ,
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Nuclear (40 Aprotons/positrons)
- Atomic Number: 40
- Atomic Mass: 91.224
- Atomic Energy: 0.136 Ergs
- Group: 4; Period: 5
- Family: Transition
Metals
- Bonding Radius: 1.45 Angstroms
- Atomic Radius: 2.16 Angstroms
- Atomic Volume: 14.1 cm3mol-1
- 30 AIsotopes: 79AZr
to 110AZr
- Stable AIsotopes:
90AZr , 91AZr , 92AZr ,
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Physical
- Rare grayish-white metal
- Density: 6.506 g cm-3
- Melting Point: 1,852 oC
- Boiling Point: 4,377 oC
- Specific Heat: 0.27 J g-1 K-1
- Heat of Vaporization: 58.2 kJ mol-1
- Heat of Fusion: 16.9 kJ mol-1
- Electrical Conductivity: 0.0236 106 cm-1 Ohm-1
- Thermal Conductivity: 0.227 W cm-1 K-1
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Physical
- Rare grayish-white metal
- Density: 6.51 g/cm-3
- Melting Point: 1,852 oC
- Boiling Point: 4,377 oC
- Specific Heat: 0.27 J g-1 K-1
- Heat of Vaporization: 58.2 kJ mol-1
- Heat of Fusion: 16.9 kJ mol-1
- Electrical Conductivity: 0.0236 106 cm-1 Ohm-1
- Thermal Conductivity: 0.227 W cm-1 K-1
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Chemical
- Valance Number: +4
- Electron Configuration: 2,8,18,10,2
- Electronegativity: 1.33
- 1st Ionization Potential: 6.8 Volts
- 2nd Ionization Potential: 13.1 Volts
- 3rd Ionization Potential: 23.0 Volts
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Chemical
- Valance Number: -4
- Positron Configuration: 2,8,18,10,2
- Positronpositivity: 1.33
- 1st Ionization Potential: 6.8 Volts
- 2nd Ionization Potential: 13.1 Volts
- 3rd Ionization Potential: 23.0 Volts
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Identified
by Martin Klaproth
Germany in 1789
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Identified by Norm Hansen in 2001
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