Britannium is an alloy of tin, copper, and antimony. This formulation is similar to pewter. It is used in the construction of the Oscar Academy Awards. An alloy is a combination, either in solution or compound, of two or more elements, at least one of which is a metal, and where the resultant material has metallic properties. ... General Name, Symbol, Number tin, Sn, 50 Chemical series poor metals Group, Period, Block 14 (IVA), 5, p Density, Hardness 7310 kg/m3, 1. ... General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11 , 4, d Density, Hardness 8920 kg/m3, 3. ... General Name, Symbol, Number antimony, Sb, 51 Series metalloids Group, Period, Block 15 (VA), 5, p Density, Hardness 6697 kg/m3, 3 Appearance silvery lustrous grey Atomic properties Atomic weight 121. ... Pewter is an alloy, traditionally of anywhere between three and nine parts tin, and one part lead. ... Although he never won an Oscar for any of his movie performances, the comedian Bob Hope received two honorary Oscars for his contributions to cinema. ...