Rhenium (Re) Properties |
ARhenium (ARe)
Properties 1/ |
Nuclear (75 protons/electrons)
- Atomic Number: 75
- Atomic Mass: 186.207
- Atomic Energy: 0.278 Ergs
- Group: 7; Period: 6
- Family: Transition
Metals
- Bonding Radius: 1.28 Angstroms
- Atomic Radius: 1.97 Angstroms
- Atomic Volume: 8.85 cm3mol-1
- 33 Isotopes: 160Re
to 192Re
- Stable Isotopes: 185Re,
187Re
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Nuclear (75 Aprotons/positrons)
- Atomic Number: 75071
- Atomic Energy: 0.278 Ergs
- Group: 7; Period: 6
- Family: Transition
Metals
- Bonding Radius: 1.28 Angstroms
- Atomic Radius: 1.97 Angstroms
- Atomic Volume: 8.85 cm3mol-1
- 33 AIsotopes: 160ARe
to 192ARe
- Stable AIsotopes: 185ARe,
187ARe
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Physical
- Rare silver white metal
- Density: 21.0 g cm-3
- Melting Point: 3,180 oC
- Boiling Point: 5,627 oC
- Specific Heat: 0.13 J g-1 K-1
- Heat of Vaporization: 715 kJ mol-1
- Heat of Fusion: 33.2 kJ mol-1
- Electrical Conductivity: 0.0542 106 cm-1 Ohm-1
- Thermal Conductivity: 0.479 W cm-1 K-1
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Physical
- Rare silver white metal
- Density: 21.0 g/cm-3
- Melting Point: 3,180 oC
- Boiling Point: 5,627 oC
- Specific Heat: 0.13 J g-1 K-1
- Heat of Vaporization: 715 kJ mol-1
- Heat of Fusion: 33.2 kJ mol-1
- Electrical Conductivity: 0.0542 106 cm-1 Ohm-1
- Thermal Conductivity: 0.479 W cm-1 K-1
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Chemical
- Valance Number: +4,+6,+7
- Electron Configuration: 2,8,18,32,13,2
- Electronegativity: 1.97
- Ionization Energy: kcal mol-1
- 1st Ionization Potential: 7.9 Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Chemical
- Valance Number: -4,-6,-7
- Positron Configuration: 2,8,18,32,13,2
- Positronpositivity: 1.97
- Ionization Energy: kcal mol-1
- 1st Ionization Potential: 7.9 Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
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Identified
by Walter Noddack,
Ida Tacke, and Otto Berg
Germany in 1925
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Identified by Norm Hansen in 2001
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