Question

Why alloying a metal can make the metal harder

Answer 1

Answer:

The larger, alloying ion disrupts the regular lattice of the pure metal. ... They disrupt the regular arrangement of ions and make it more difficult for the layers to slide over each other. This makes the alloy harder and less malleable and ductile than the pure metal (in which the layers slip over each other more easily)

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Explanation:

Answer 2

yes, alloying a metal can make the metal hard