Distinguish a pure metal from an alloy in terms of composition.

In the subtopic Alloys as useful materials, this learning objective focuses on distinguish a pure metal from an alloy in terms of composition. Within Using materials, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include alloy and composition. pure metal means a material consisting of only one type of atom, with a uniform composition throughout. Avoid students often think that a pure metal and an alloy have the same composition, not recognizing that alloys are mixtures of different elements; instead to fix this, remember that a pure metal consists of only one type of atom, while an alloy contains two or more different elements combined together. For exam answers, remember that a pure metal consists of only one type of atom, while an alloy is a mixture of two or more different elements, typically including at least one metal.