46 · Pd
Palladium
Isolated by Wollaston in 1803.
Identity
- Atomic number
- 46
- Symbol
- Pd
- Canonical name
- Palladium
- Category
- transition metal
- Group
- 10
- Period
- 5
- Block
- d
Properties
These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.
- Atomic mass
- 106.421 u
- Electron configuration
- [Kr] 4d10
- Electrons per shell
- 2, 8, 18, 18
- Standard state
- solid
- Density
- 12.023 g/cm³
- Melting point
- 1,828.05 K
- Boiling point
- 3,236 K
- Electronegativity
- 2.2 Pauling
- First ionization energy
- 804.4 kJ/mol
- Electron affinity
- 54.24 kJ/mol
History
Palladium
Discovery · confirmed · 1803
Wollaston isolates palladium from platinum ores.
Etymology
- Theme
- celestial body
- Language
- grec
- Root
- Pallas
- Meaning
- the asteroid Pallas
Scientists
Places and institutions
- London — historical setting : United Kingdom — present country : United Kingdom
See also
Sources
- IUPAC, Periodic Table of the Elements
- Bowserinator, Periodic Table JSON. Compilation secondaire d’où viennent les grandeurs physiques importées (masse, densité, températures, énergies). Elles ne sont pas revérifiées une à une auprès du NIST ou de la CIAAW.
- John Emsley, Nature’s Building Blocks: An A–Z Guide to the Elements