 | 79 |
Au | Gold
|
| Atomic Weight: 196.96654 | Shells: 2,8,18,32,18,1
|
| Group: Trans. Metal | Filling orbital: 5d10
|
| Crystal Structure: Cubic face centered | Covalent radius: 1.34 Å
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| Oxidation States: +1,+3 | Atomic radius: 1.79 Å
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| Electronegativity, Pauling: 2.54 | Atomic volume: 10.2 cm³/mol
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| State at RT: Solid | First ionization potential: 9.225 V
|
| Melting Point: 1337.58°K | 2nd ionization potential: 20.521 V
|
| Boiling Point: 3080°K | 3rd ionization potential: ?
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| Density @ 293°K: 19.32 g/cm³ | Specific heat: 0.128 J/gK
|
| Electrical conductivity: 0.452 106/cm ohm | Heat of vaporization: 334.40 kJ/mol
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| Thermal conductivity: 3.17 W/cmK | Heat of fusion: 12.550
|
|
|
| Element Nuclides
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| Nuclide | Abundance | Weight | Spin | Half-Life | Decay Modes
|
| Au194 | 0.% | 194. | 1 | 1.64d |  ,  +
|
| Au195 | 0.% | 195. | 1.5 | 186.12d |
|
| Au195m | 0.% | 195. | 5.5 | 30.5s | IT
|
| Au196 | 0.% | 196. | 2 | 6.18d | , -, +
|
| Au197 | 100.% | 196.9665 | 1.5 | | Stable
|
| Au198 | 0.% | 198. | 2 | 2.694d | -
|
| Au199 | 0.% | 199. | 1.5 | 3.14d | -
|