Cu·Sn bronze alloy of copper and tin Read “Bronze” on Wikipedia Fig 1 Structure Wikidata gives no structure for bronze, so there is nothing to draw. Formula Cu·Sn Wikidata Molar mass The mass of a mole of it, from the elements' atomic weights Not fixed: the formula leaves a count open Worked out Made of Copper some Tin some Worked out Wikidata item Q34095 Wikidata