Palladium

Document v1 · published by Koskamo · updated 2026-10-04

Palladium (Pd) is chemical element 46, a transition metal in group 10, period 5 (PubChem).

Atomic number: 46
Symbol: Pd
Group: 10
Period: 5
Atomic mass: 106.42 u
Electron configuration: [Kr]4d10
Electronegativity (Pauling scale): 2.2
Atomic radius (van der Waals): 202 pm
Ionization energy: 8.337 eV
Electron affinity: 0.557 eV
Oxidation states: +3, +2
Standard state: Solid
Melting point: 1828.05 K
Boiling point: 3236 K
Density: 12.0 g/cm³
Chemical group: Transition metal
Year discovered: 1803

Source and provenance

Original source: pubchem.ncbi.nlm.nih.gov
Published on Koskamo by: Koskamo
Citation version: Document v1
Reuse: PubChem periodic table data (NIH/NLM, pubchem.ncbi.nlm.nih.gov/ptable); group and period from Jefferson Lab via PubChem

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Version history

Published by Koskamo2026-10-04
Version 1