Atomic Symbol: Cd
Atomic Number: 48
Atomic Weight: 112.411
Isotopes and Abundances: 106Cd 1.25 %, 108Cd 0.89 %, 110Cd 12.51 %, 111Cd 12.81 %, 112Cd 24.13 %, 113Cd 12.22 %, 114Cd 28.72 %, 116Cd 7.47 %
1 Atm Melting Point: 594.1 K
1 Atm Boiling Point: 1038 K
Common Valences: +2, +1
Ionic Radii: (+II) 103 ppm, (+I) 114 ppm
Pauling Electronegativity: 1.69
First Ionization Energy: 867.8 kJ/mol
Chondritic (CI) Abundance: 686 ppb
Silicate Earth Abundance: 0.04 ppm
Crustal Abundance: 0.11 ppm
Seawater Abundance: 0.11 ppb
Core Abundance: 0.15 ppm
Properties
Cadmium (Emsley 1991, 2001; Anthoni 2006; Anders and Grevesse 1989; McDonough 2005) is a lustrous, silvery-white metal with a bluish tinge on the surface and tarnishes in air. It is very ductile and malleable and is soft enough to be cut with a knife. Cadmium is soluble in acids but not in alkaline solutions. In many ways, cadmium is similar to zinc but forms more complex compounds.
Cadmium was not considered to be...
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References
Anders, E., and Grevesse, N., 1989. Abundances of the elements: meteoritic and solar. Geochimica et Cosmochimica Acta, 53, 197–214. http://meteorites.wustl.edu/goodstuff/chondritic_abundances.htm
Anthoni, J. F., 2006. The Chemical Composition of Seawater In. http://www.seafriends.org.nz/oceano/seawater.htm
Emsley, J., 1991. The Elements, 2nd edn. Oxford: Clarendon Press.
Emsley, J., 2001. Nature’s Building Blocks An A-Z Guide to the Elements. Oxford: Oxford University Press.
McDonough, W. F., 2005. Compositional model for the earth’s core. In Carlson, R. W. (ed.), The Mantle and Core. Oxford: Elsevier, pp. 547–568. http://www.knowledgedoor.com/2/elements_handbook/element_abundances_in_the_earth_s_core.html
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Vasiliu, M., Dixon, D.A. (2016). Cadmium. In: White, W. (eds) Encyclopedia of Geochemistry. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-319-39193-9_27-1
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DOI: https://doi.org/10.1007/978-3-319-39193-9_27-1
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