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Question 1 of 6
1 of 6
Match the following key terms to their definitions.
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A mixture of two or more elements, at least one of which is a metal.
Negatively charged particle free to move through the metal structure.
A liquid substance formed by heating solid metal, glass or rocks.
A characteristic of a substance that can be observed or measured.
alloy
delocalised electron
molten
physical poperty
Steel is an alloy of iron and carbon. Molten metals are formed by heating.