Atomic Symbol: Dy
Atomic Number: 66
Atomic Weight: 162.500(1)
Isotopes and Abundances: 156Dy, 0.056(3)%; 158Dy, 0.095(3)%; 160Dy, 2.329(18)%; 161Dy, 18.889(42)%; 162Dy, 25.475(36)%; 163Dy, 24.896(42)%; and 164Dy, 28.260(54)%
1 Atm Melting Point: 1412 °C
1 Atm Boiling Point: 2567 °C
Common Valences: +3
Ionic Radii: 91.2 pm (CN6), 102.7 pm (CN8), and 122.8 pm (CN12)
Pauling Electronegativity: 1.22
First Ionization Energy: 573.02 kJ mol−1
Chondritic (CI) Abundance: 0.254 ppm
Silicate Earth Abundance: 0.566 ppm
Crustal Abundance: 3.7 ppm
Seawater Abundance: 1.06 ppt
Core Abundance: ~0
Properties
Dysprosium (Dy), from the Greek dysprositos (hard to access), is a soft, ductile, dense (8.551 g cm−3), bright silvery metal. Its electronic configuration is [Xe]4f106s2. It is stable at room temperature and readily dissolves in mineral acids. It is a group 3 or IIIB inner transition element, with +3 being its only valence state in geological environments, and is one of the...
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References
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McLennan, S.M. (2016). Dysprosium. In: White, W. (eds) Encyclopedia of Geochemistry. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-319-39193-9_94-1
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DOI: https://doi.org/10.1007/978-3-319-39193-9_94-1
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