A Name the Two Unit Cells Which Occur in Close

question 50

Essay

a. Name the two unit cells which occur in close packing of identical atoms.
b. Briefly explain how the two types of close-packed lattices of identical atoms differ, in terms of atomic arrangements.

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Definitions:

Adaptive Behavior

The collection of conceptual, social, and practical skills that individuals have developed to function in their everyday lives.

Subaverage

Below average, particularly in intelligence, signifying lower performance than the statistical norm.

Oppositional Defiant Disorder

A disorder in which children are repeatedly argumentative and defiant, angry and irritable, and, in some cases, vindictive.

Conduct Disorder

A disorder in which a child repeatedly violates the basic rights of others and displays aggression, characterized by symptoms such as physical cruelty to people or animals, the deliberate destruction of other people’s property, and the commission of various crimes.