79 Au 196.967
Gold
transition metal
Properties
- Atomic number
- 79
- Atomic mass
- 196.967 u
- Category
- transition metal
- Group
- 11
- Period
- 6
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 1
- Electronegativity
- 2.54 (Pauling)
- Density
- 19.3 g/cm³
- Melting point
- 1064.18 °C
- Boiling point
- 2969.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹ 4f¹⁴ 5d¹⁰
Noble-gas shorthand: [Xe] 4f¹⁴ 5d¹⁰ 6s¹
Electrons per shell: 2, 8, 18, 32, 18, 1 — that's 1 in the outermost shell.
About Gold
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.
- Discovered by Middle East
- Appearance: metallic yellow
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.