Advertisements
Advertisements
प्रश्न
Explain metal deficiency defect with examples.
Advertisements
उत्तर
Positive metal ions are missing from their original Lattice locations in some crystals. The existence of a cation of the same metal with a higher oxidation state than the missing cation balances the extra negative charge.
For Example: In NiO one Ni2+ ion is missing, creating a vacancy at its Lattice site. The deficiency of two positive charges is made up by the presence of two Ni3+ ions at the other Lattice sites of Ni2+ ions.

Nonstoichiometric Ni0.97O1.0
APPEARS IN
संबंधित प्रश्न
What are the consequences of the Schottky defect in crystals?
What is an impurity defect? What are its types? Explain the formation of vacancies through aliovalent impurity with example.
Explain with diagram, the vacancy defect.
Give the classification of stoichiometric point defects.
Explain solid solutions of metals and vacancy through aliovalent cations.
Which among the following solids shows Frenkel defect?
Which among the following statements is true about Schottky defect?
Which of the following pair of ionic crystals show Schottky defect?
Schottky defect in crystals is observed when ____________.
Which among the following defects is observed in Brass?
Write the consequences of Schottky defect with reasons.
AgBr shows which type of defect?
Name a compound where Frenkel defect is found.
In which among the following solids, Schottky defect is not observed?
When electrons are trapped into the crystal in anion vacancy, the defect is known as ______.
Explain the following term:
Substitutional impurity defect
What is a crystal defect?
Explain the interstitial defect.
What is a vacancy defect?
What are point defects?
Identify the type of defect from following in stainless steel.
