Alloys

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 When two metals are heatec;l together, or a metal is mixed with a nonmetallic element, then one of the following will occur: 

l. An ionic compound may be formed. 

2. An interstitial alloy may be formed. 

3. A substitutional alloy may be formed. 

4. A simple mixture may result. 

Which of these occurs depends on the hemical nature of the two elements concerned, and on the relative sizes of the metal atoms and added atoms.

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