Au
Gold
previous element
Au |
|
|
Gold |
||
| previous element |
next element |
| Atomic number | 79 |
| Atomic weight | 196.9665 |
| Orbital electronic configuration | (Xe)4f145d106s1 |
| First ionization energy (eV) | 9.225 |
| Second ionization energy (eV) | 20.5 |
| Electronegativity (Pauling) | 2.54 |
| Atomic radius (Å) | 1.79 |
| Bonding radius (Å) | 1.34 |
| Oxidation states | 3, 1 |
Properties |
|
| Density at 300K (g/ml) | 19.3 |
| Melting point (K) | 1337.58 |
| Boiling point (K) | 3130 |
| Heat of vaporization (kJ/mol) | 334.40 |
| Heat of fusion (kJ/mol) | 12.550 |
| Specific heat capacity (Jg-1K-1) | 0.128 |
| Crystal structure | cubic, face centered |