Lectionary Calendar
Wednesday, September 17th, 2025
the Week of Proper 19 / Ordinary 24
the Week of Proper 19 / Ordinary 24
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Bible Encyclopedias
Gadolinium
1911 Encyclopedia Britannica
or Resource Toolbox
(symbol Gd., atomic weight 157.3), one of the rare earth metals (see Erbium). The element was discovered in 1880 in the mineral samarskite by C. Marignac (Comptes rendus, 1880, 90, p. 899; Ann. chim. phys., 1880 [5] 20, p. 535).
G. Urbain (Comptes rendus, 1905, 140, p. 583) separates the metal by crystallizing the double nitrate of nickel and gadolinium. The salts show absorption bands in the ultra-violet. The oxide Gd203 is colourless (Lecoq de Boisbaudran).
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Gadolinium'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/g/gadolinium.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Gadolinium'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/g/gadolinium.html. 1910.
