29 Cu 63.546
Copper
transition metal
Properties
- Atomic number
- 29
- Atomic mass
- 63.546 u
- Category
- transition metal
- Group
- 11
- Period
- 4
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 1
- Electronegativity
- 1.9 (Pauling)
- Density
- 8.96 g/cm³
- Melting point
- 1084.62 °C
- Boiling point
- 2561.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰
Noble-gas shorthand: [Ar] 3d¹⁰ 4s¹
Electrons per shell: 2, 8, 18, 1 — that's 1 in the outermost shell.
About Copper
Copper is a chemical element with symbol Cu (from Latin:cuprum) and atomic number 29. It is a soft, malleable and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a reddish-orange color.
- Discovered by Middle East
- Appearance: red-orange metallic luster
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.