Palladium

Koushik 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08

Property	Value
Atomic Number	46
Element	Palladium
Symbol	Pd
Atomic Mass	106.42 u
Number of Neutrons	60 (most common isotope, Palladium-106)
Number of Protons	46
Number of Electrons	46
Period	5
Group	10
Phase	Solid
Radioactive	No
Natural	Yes
Metal	Yes
Nonmetal	No
Metalloid	No
Type	Transition Metal
Atomic Radius	169 pm
Electronegativity	2.20 (Pauling scale)
First Ionization Energy	8.337 eV
Density	12.02 g/cm³
Melting Point	1554.9 °C
Boiling Point	2963 °C
Number of Isotopes	6 stable (Pd-102, Pd-104, Pd-105, Pd-106, Pd-108, Pd-110)
Discoverer	William Hyde Wollaston
Year	1803
Specific Heat	0.244 J/g·K
Number of Shells	5
Number of Valence Electrons	10