Question

What point defects are possible for al2o3 as an impurity in mgo? how many al3 ions must be added to form each of these defects?

Answer 1

Point defects are possible for al2o3 as an impurity in mgo. then 2 Al3+ must be added to form 1 Mg2+  must be added to form each of these defects

Point defects are zero-dimensional lattice defects, meaning they lack lattice structure in any dimension. Impurity atoms in a pure metal, vacancies, and self-interstitials are examples of common point defects.

Point defects are zero-dimensional lattice defects, which means they lack any kind of lattice structure. Point defects include, but are not limited to, atoms of impurity in a pure metal, vacancies, and self-interstitials.

The term "point defect" refers to the flaw or imperfection that results from the placement of a point-like constituent particle, such as an atom, an ion, or a molecule, in a crystalline structure.

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