46
Pd
106.42
Palladium (Pd)
Element 46 · Period 5 · Group 10
transition-metal
solid at room temp
d-block
About Palladium
Unique d-block electron configuration. Key in catalytic converters and hydrogen storage.
Physical Properties
Atomic Mass
106.42 u
State at 25°C
Solid
Melting Point
1554.9 °C
Boiling Point
2963 °C
Density
12.023 g/cm³
Magnetism
Paramagnetic
Atomic Properties
Electron Configuration
[Kr] 4d¹⁰
Electron Shells
2, 8, 18, 18
Electronegativity
2.2
Atomic Radius
169 pm
Ionization Energy
805 kJ/mol
Oxidation States
+2, +4
Discovery & History
Discovered By
William Hyde Wollaston
Discovery Year
1803
Named By
William Hyde Wollaston
Name origin: Asteroid Pallas
Frequently Asked Questions
- Is Palladium a metal, nonmetal, or metalloid?
- Palladium is classified as a transition-metal.
- What state is Palladium in at room temperature?
- Palladium is a solid at standard room temperature (25°C).
- What is the atomic mass of Palladium?
- Palladium has an atomic mass of 106.42 atomic mass units (u).
- Who discovered Palladium?
- Palladium was discovered by William Hyde Wollaston in 1803.
- Where is Palladium on the periodic table?
- Palladium is element number 46, located in period 5 and group 10.