79 - Gold transition metal
Discovered by Middle East in unknown
- Atomic Radius (Å)
Gold is a chemical element with symbol Au (from Latin:aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. Chemically, gold is a transition metal and a group 11 element.
Shell | Electrons | Orbitals |
---|---|---|
1 | 2 | 2 in 1s |
2 | 8 | 2 in 2s + 6 in 2p |
3 | 18 | 2 in 3s + 6 in 3p + 10 in 3d |
4 | 32 | 2 in 4s + 6 in 4p + 10 in 4d + 14 in 4f |
5 | 18 | 2 in 5s + 6 in 5p + 10 in 5d |
6 | 1 | 1 in 6s |
196.97 u
Atomic Mass
1.8 Å
Atomic Radius
3129 K
Boiling Point
1.36 Å
Covalent Radius
19.3 g/cm³
Density
222.75
Electron Affinity
2.54
Electronegativity
9.23 eV
First Ionization Energy
1337.73 K
Melting Point
6
Number of Shells
79
Atomic Number
2, 8, 18, 32, 18, 1
Electron Shell Occupations