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Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating.
While NSF is a severe form of disease, gadolinium deposition disease (GDD) is a mild variant with pain (e.g. headache), fatigue, and / or gadolinium depositions. [26] As a free solubilized aqueous ion, gadolinium(III) is highly toxic, but the chelated compounds are
Gadolinium(III) oxide (archaically gadolinia) is an inorganic compound with the formula Gd 2 O 3. It is one of the most commonly available forms of the rare-earth element gadolinium , derivatives, of which are potential contrast agents for magnetic resonance imaging .
Europium, gadolinium, and terbium were either considered as a separate group of rare-earth elements (the terbium group), or europium was included in the cerium group, and gadolinium and terbium were included in the yttrium group.
Naturally occurring gadolinium (64 Gd) is composed of 6 stable isotopes, 154 Gd, 155 Gd, 156 Gd, 157 Gd, 158 Gd and 160 Gd, and 1 radioisotope, 152 Gd, with 158 Gd being the most abundant (24.84% natural abundance).
Gadolinium(III) chloride, also known as gadolinium trichloride, is GdCl 3. It is a colorless, hygroscopic, water-soluble solid. It is a colorless, hygroscopic, water-soluble solid. The hexahydrate GdCl 3 ∙6H 2 O is commonly encountered and is sometimes also called gadolinium trichloride.
This category contains articles related to the chemical element Gadolinium Wikimedia Commons has media related to Gadolinium . See also the preceding Category:Europium and the succeeding Category:Terbium
Gadolinium is used in magnetic resonance imaging as an MRI contrast agent or gadolinium-based contrast agent (GBCA). [3] In the 3+ oxidation state, the metal has seven unpaired electrons. This causes water around the contrast agent to relax quickly, enhancing the quality of the MRI scan.