46 Pd Palladium 106.42
Transition metal
Palladium 钯
[Kr] 4d¹⁰
- Period 5
- Group 10
- Block d
- Solid
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰
Orbital diagram (valence)
3d ↑↓↑↓↑↓↑↓↑↓
4s ↑↓
4p ↑↓↑↓↑↓
4d ↑↓↑↓↑↓↑↓↑↓
- Electrons per shell
- 2, 8, 18, 18
- Unpaired electrons
- 0
- Zeff (Slater)
- 6.85
Properties
- Atomic weight
- 106.42
- Electronegativity (Pauling)
- 2.2
- First ionization energy
- 804.4 kJ/mol
- Electron affinity
- 53.74 kJ/mol
- Covalent radius
- 139 pm
- van der Waals radius
- 202 pm
- Melting point
- 1828 K
- Boiling point
- 3236 K
- Density
- 12 g/cm³
- Melting / boiling point
- 1554.9 °C / 2962.8 °C
- Common oxidation states
- +3, +2
- Discovered
- 1803
Palladium in the course
The lessons that discuss this element most (ranked by mentions).
Periodic trend
Data: PubChem periodic table (public domain); atomic weights are IUPAC abridged standard values; covalent radii from Cordero et al. (2008).