In industry, the Elsner equation governs the MacArthur-Forrest process producing a cyanide of this substance, which has one 6s valence electron and filled 4f and 5d orbitals.
In industry, the Elsner equation governs the MacArthur-Forrest process producing a cyanide of this substance, which has one 6s valence electron and filled 4f and 5d orbitals. In one experiment, this material was surrounded by a circular ring of zinc sulfide by Marsden and Geiger. Its 3-plus ion bonds to chlorine when it dissolves in aqua regia, and with mercury it forms amalgams. A sheet of this element had alpha particles shot at it in the Rutherford experiment. The most ductile and malleable of all metals, it is often mistaken for pyrite. For 10 points, name this elemental metal with atomic number 79, symbol Au, and a distinctive color.
In industry, the Elsner equation governs the MacArthur-Forrest process producing a cyanide of this substance, which has one 6s valence electron and filled 4f and 5d orbitals.
gold [accept Au or aurum until mentioned; do not accept "platinum" at any point since the 3+ ion clue is specific to gold]