48
112.41
Cd
Cadmium
Identification
CAS Number: 7440-43-9
Discovery Year: 1817
Discoverer: Fredrich Stromeyer
Discovery Location: Germany
Properties
Atomic Dimensions
Atomic Radius: 155 pm →
Atomic Radius (Rahm): 238 pm
Covalent Radius: 144 pm →Van der Waals Radius: 218.00000000000003 pm
Metallic Radius: 138 pm
Atomic Volume: 13.1 cm³/mol
Lattice Constant: 2.98 Å
Thermodynamics
Electronic Structure
Electron Config: [Kr] 4d10 5s2
Block: d
Period: 5 →Group: 12 →Electronegativity: 1.69 →Oxidation States: +2
Abundance & Geochemistry
Crust Abundance: 0.15 mg/kg
Sea Abundance: 0.00011 mg/L
Goldschmidt Class: chalcophile
About
Soft bluish metal belonging to group 12 of the periodic table. Extremely toxic even in low concentrations. Chemically similar to zinc, but lends itself to more complex compounds. Discovered in 1817 by F. Stromeyer.
Isotopes
Cd-114 114 28.75%
Cd-112 112 24.11%
Cd-111 111 12.80%
Cd-110 110 12.47%
Cd-113 113 12.23%
Cd-116 116 7.51%
Cd-106 106 1.24%
Cd-108 108 0.8880%
