Compare the Packing Efficiency of Face-Centered Cubic Gold and Face-Centered

question 62

Multiple Choice

Compare the packing efficiency of face-centered cubic gold and face-centered cubic sodium chloride.

• A) The efficiency of packing in the gold unit cell is higher.
• B) The efficiency of packing in the sodium chloride unit cell is higher.
• C) The efficiencies of packing in the two lattices are the same.
• D) Packing efficiencies cannot be defined for one or both of these.
• E) There is no way to compare without further information.

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Definitions:

Confidence Interval

A range of values, derived from a sample, that is likely to contain the population parameter with a specified level of confidence.

Normally Distributed Population

A population with a distribution that has a characteristic bell-shaped curve where most of the data points cluster around the mean.

Standard Deviation

An indicator of the degree of difference or spread within a collection of numbers.

Confidence Interval

A series of numbers, derived from analyzing a sample, assumed to encircle the value of a concealed population parameter.