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Hafnium-Anti
Hafnium
Hafnium was named for Hafnia Latin name of Copenhagen
Hafnium (Hf) Properties |
AHafnium (AHf)
Properties 1/ |
Nuclear (72 protons/electrons)
- Atomic Number: 72
- Atomic Mass: 178.49
- Atomic Energy: 0.266 Ergs
- Group: 4; Period: 6
- Family: Transition
Metals
- Bonding Radius: 1.44 Angstroms
- Atomic Radius: 2.16 Angstroms
- Atomic Volume: 13.6 cm3mol-1
- 33 Isotopes:
154Hf to 186Hf
- Stable Isotopes: 174Hf,
176Hf, 177Hf,
178Hf, 179Hf,
180Hf
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Nuclear (72 Aprotons/positrons)
- Atomic Number: 72
- Atomic Mass: 178.49
- Atomic Energy: 0.266 Ergs
- Group: 4; Period: 6
- Family: Transition
Metals
- Bonding Radius: 1.44 Angstroms
- Atomic Radius: 2.16 Angstroms
- Atomic Volume: 13.6 cm3mol-1
- 32 AIsotopes:
154AHf to 186AHf
- Stable AIsotopes:
174AHf, 176AHf,
177AHf, 178AHf,
179AHf, 180AHf
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Physical
- Silver colored metal
- Density: 13.3 g cm-3
- Melting Point: 2,150 oC
- Boiling Point: 5,400 oC
- Specific Heat: 0.14 J g-1 K-1
- Heat of Vaporization: 575 kJ mol-1
- Heat of Fusion: 24 kJ mol-1
- Electrical Conductivity: 0.0312 106 cm-1 Ohm-1
- Thermal Conductivity: 0.230 W cm-1 K-1
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Physical
- Silver colored metal
- Density: 13.3 g/cm-3
- Melting Point: 2,150 oC
- Boiling Point: 5,400 oC
- Specific Heat: 0.14 J g-1 K-1
- Heat of Vaporization: 575 kJ mol-1
- Heat of Fusion: 24 kJ mol-1
- Electrical Conductivity: 0.0312 106 cm-1 Ohm-1
- Thermal Conductivity: 0.230 W cm-1 K-1
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Chemical
- Valance Number: +4
- Electron Configuration: 2,8,18,32,10,2
- Electronegativity: 1.3
- 1st Ionization Potential: 6.7 Volts
- 2nd Ionization Potential: 14.9 Volts
- 3rd Ionization Potential: 23.3 Volts
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Chemical
- Valance Number: -4
- Positron Configuration: 2,8,18,32,10,2
- Positronpositivity: 1.3
- 1st Ionization Potential: 6.7 Volts
- 2nd Ionization Potential: 14.9 Volts
- 3rd Ionization Potential: 23.3 Volts
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Identified
by Dirk Coster and Georg von Hevesy
Denmark in 1923
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Identified by Norm Hansen in 2001
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1/ Superscript
A
before the element/symbol indicates the
element is antimatter.
178AHf
is an AntiHafnium element with an atomic mass of 178.
See Rosetta Stone for Matter &
Antimatter Definitions |
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