Cadmium

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

Cadmium (Cd) is chemical element 48, a transition metal in group 12, period 5 (PubChem).

Atomic number: 48
Symbol: Cd
Group: 12
Period: 5
Atomic mass: 112.41 u
Electron configuration: [Kr]5s2 4d10
Electronegativity (Pauling scale): 1.69
Atomic radius (van der Waals): 158 pm
Ionization energy: 8.994 eV
Oxidation states: +2
Standard state: Solid
Melting point: 594.22 K
Boiling point: 1040 K
Density: 8.69 g/cm³
Chemical group: Transition metal
Year discovered: 1817

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