Which of the following is a definition for an interstitial alloy? a
an alloy in which the atomic sizes of the components are different
b
an alloy in which the atoms of the components in an alloy are about the same size
c
an alloy in which some of the atoms of the components are about the same size and some are different
d
a metal in which all of the atoms are of the same element

c

Explanation:

An interstitial compound or interstitial alloy is a compound that is formed when an atom of sufficiently small radius sits in an interstitial “hole” in a metal lattice. Examples of small atoms are hydrogen, boron, carbon and nitrogen. These compounds are important industrially, for example some transition metal carbides and nitrides.

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