What is non-stoichiometric defect example?

Nonstoichiometric inorganic solids contain the constituent elements in a non-stoichiometric ratio due to defects in their crystal structures. These defects are of two types: (i) metal excess defect and (ii) metal deficiency defect.

What is stoichiometric and non-stoichiometric defects?

Stoichiometric vs Nonstoichiometric Defects Stoichiometric defects are those that do not disturb the stoichiometry of a compound. Nonstoichiometric defects are defects in crystal structures that disturb the stoichiometry of the crystal. Effect on Stoichiometry. They do not affect the stoichiometry of the compound.

What are the types of non-stoichiometric defects?

Types of Non-Stoichiometric Defect:

• Metal deficiency defect: In this, the solids have less number of metals relative to the described Stoichiometric proportion.
• Metal excess defect: There are two types of metal excess defect:

Which is the best description of a non stoichiometric defect?

Non-stoichiometric defect: The defect that causes the ratio of the number of cations to anions to be different from that indicated by the ideal chemical formula is known as a non-stoichiometric defect. Non-stoichiometric defects are of two types – metal excess defects and metal deficiency defects.

Why do inorganic solids have a non stoichiometric ratio?

Nonstoichiometric inorganic solids contain the constituent elements in a non-stoichiometric ratio due to defects in their crystal structures. These defects are of two types: (i) metal excess defect and (ii) metal deficiency defect. (i) Metal Excess Defect.

What are the defects in Class 12 chemistry?

Class 12 Chemistry The Solid State. Non-Stoichiometric Defects. Non-Stoichiometric Defects. Nonstoichiometric inorganic solids contain the constituent elements in a non-stoichiometric ratio due to defects in their crystal structures. These defects are of two types: (i) metal excess defect and (ii) metal deficiency defect. (i) Metal Excess Defect.

What causes the nonstoichiometric compound in a crystal?

The nonstoichiometry is caused by assimilation of vacancies or interstitial atoms as structure elements of the crystal [15].