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Crystal lattices and unit cells

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By Expert Faculty of Sri Chaitanya
Question

lonic lattice has two major points defects, (1) Schottky (2) Frenkel defects Schottky defects occurs due to the cation-anion pair's missing from the lattice sites. Frenkel defects occurs when an ion leaves its lattice site and fits into an interstitial space. The neutrality of the crystal is being maintained and we considered all losses from interstitial positions

Moderate
Question

Which defect decreases density of the crystal?

Solution

ion pairs missing in schottky defect, therefore involves loss in mass

Question

Structure shown here represents: 

Solution

cation misses lattice point and moves to interstitial position

Question

Structure shown here represents:

Solution

when a salt is heated with its own metal it ionizes and forms cations and electrons


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Similar Questions

Caesium atoms are the largest naturally occurring atoms. The radius of Cs atom is 2.6 Ao. The number of moles of Cs atoms to be laid side by side to give a row of Cs atoms 2.50 cm x × 10-17 . Find the value of x.

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