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a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group

a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group

Gadolinium. An element of the rare earth family of metals. It has the atomic symbol Gd, atomic number 64, and atomic weight 157.25. Its oxide is used in the control rods of some nuclear reactors.

A very rare element, symbol Gd, atomic weight 157.3.