Like zinc, this metal usually occurs only in the plus-2 oxidation state, and like iron, cobalt, and gadolinium, this transition metal is ferromagnetic at room temperature.
This element reacts with carbon monoxide to generate a liquid tetrahedral 4-coordinate complex; that process is exploited to purify this element in the Mond process. Hydrogenation reactions can be catalyzed by an alloy of this metal and aluminum named for (*) Raney. Like zinc, this metal usually occurs only in the plus-2 oxidation state, and like iron, cobalt, and gadolinium, this transition metal is ferromagnetic at room temperature. This metal is usually found with copper in its major ore, and a mixture of it and iron is a major component of the Earth's core. For 10 points, name this metal that actually only makes up one-fourth of its namesake coin.
This element reacts with carbon monoxide to generate a liquid tetrahedral 4-coordinate complex; that process is exploited to purify this element in the Mond process.
nickel (accept Ni)