Why Do TEM Images Not Form Well in Crystals with a Random

question 9

Multiple Choice

Why do TEM images not form well in crystals with a random arrangement of atoms?

• A) With randomly arranged atoms, there is a greater chance that the electrons will miss the atoms, resulting in poor images.
• B) Crystals with random arrangements of atoms often have a more reflective surface, so the electrons bounce off the surface of the crystal, resulting in poor images.
• C) A random arrangement of atoms in a crystal means that the atoms are extremely small, resulting in poor images.
• D) A random arrangement of atoms in a crystal means that the atoms are extremely large, resulting in poor images.

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Definitions:

Sample Size

The number of observations or elements selected from a population to be analyzed.

Population Mean

The average of a set of values in an entire population, representing the central tendency of the population.

Interval Estimate

An estimation that specifies a range within which a parameter lies, providing an interval believed to encompass the true value of that parameter.

Sample Mean

The average of all the values in a sample set of data.