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Get Answers to all your Questions
Which of the following statement is true about interstitial voids in a crystal lattice?
They are always occupied by the same type of atoms as in the crystal lattice
They are always unoccupied
They can be occupied by atoms of different sizes than those in the crystal lattice
They can be occupied by only non-metallic atoms
Answers (1)
Interstitial voids are the empty spaces in a crystal lattice that are smaller than the atoms or ions that form the lattice. These voids can be occupied by atoms or ions that are smaller in size than the atoms or ions in the lattice. This is possible because the interstitial sites are not fixed and can adjust to accommodate atoms of different sizes. This property of interstitial voids is used in doping of semiconductors and in the preparation of alloys.
Option a) is incorrect because interstitial voids can be occupied by atoms of different sizes than those in the crystal lattice, not always by the same type of atoms.
Option b) is incorrect because interstitial voids can be occupied by atoms or ions, they are not always unoccupied.
Option d) is incorrect because interstitial voids can be occupied by both metallic and non-metallic atoms, not only non-metallic atoms.
Therefore, the correct answer is c) They can be occupied by atoms of different sizes than those in the crystal lattice.
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