Pd
106.420Palladium
Paladyum
Palladium is a platinum-group transition metal with atomic number 46. It is used in catalytic converters, palladium-catalyzed cross-coupling reactions, hydrogen absorption, electronics, dentistry and jewelry alloys.
46
106.42 g/mol
[Kr] 4d¹⁰
2 | 8 | 18 | 18
2.2
12.023 g/cm³
1554.9 °C
2962.8 °C
William Hyde Wollaston
Palladium was discovered in 1803 by William Hyde Wollaston and named after the asteroid Pallas, which had been discovered shortly before.
Palladium-102
Natural abundance: About 1.0%. Stable isotope of palladium.Palladium-104
Natural abundance: About 11.1%. Stable isotope of palladium.Palladium-105
Natural abundance: About 22.3%. Stable isotope of palladium.Palladium-106
Natural abundance: About 27.3%. The most abundant stable isotope of palladium.Palladium-108
Natural abundance: About 26.5%. Stable isotope of palladium.Palladium-110
Natural abundance: About 11.7%. Stable isotope of palladium.PdCl₂
Palladium(II) ChlorideCatalyst precursor, CO detection chemistry and palladium source.Pd(OAc)₂
Palladium(II) AcetateCommon catalyst precursor in cross-coupling and C-H activation chemistry.Pd/C
Palladium on CarbonHydrogenation catalyst in organic synthesis.- Catalytic converters for oxidizing carbon monoxide and hydrocarbons
- Palladium-catalyzed cross-coupling reactions such as Suzuki, Heck and Negishi reactions
- Hydrogen purification membranes and hydrogen storage research
- Multilayer ceramic capacitors and electronic components
- Dental alloys, jewelry and white gold alloys
Palladium has no known essential biological role.
- Palladium has the unusual electron configuration [Kr] 4d¹⁰, with no 5s electron in the ground-state notation used here.
- Suzuki, Heck and Negishi cross-coupling reactions earned the 2010 Nobel Prize in Chemistry.
- Palladium can absorb large amounts of hydrogen into its metal lattice.
- Palladium is one of the platinum-group metals and is important in emission control.
- Palladium has atomic number 46 and belongs to group 10.
- Its electron configuration is [Kr] 4d¹⁰.
- Common oxidation states include 0, +2 and +4.
- Palladium catalysts are central to carbon-carbon bond formation in organic synthesis.
What is the atomic number of palladium?
The atomic number of palladium is 46.
What is the electron configuration of palladium?
Palladium has the electron configuration [Kr] 4d¹⁰.
What is palladium used for?
Palladium is used in catalytic converters, cross-coupling catalysts, electronics, hydrogen purification, dental alloys and jewelry.
Why is palladium important in organic chemistry?
Palladium catalysts enable cross-coupling reactions such as Suzuki, Heck and Negishi reactions, which are widely used to make pharmaceuticals and advanced materials.
Can palladium absorb hydrogen?
Yes. Palladium can absorb large amounts of hydrogen, which makes it useful in hydrogen purification and research.
Is palladium a platinum-group metal?
Yes. Palladium is one of the platinum-group metals.