For a Metal That Crystallizes in a Body-Centered Cubic Unit

question 54

Multiple Choice

For a metal that crystallizes in a body-centered cubic unit cell,what percentage of the space in the cell is occupied by the metal atoms?

• A) 47%
• B) 62.4%
• C) 68%
• D) 77%
• E) 87%

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Definitions:

Perceptual Constancy

The brain's ability to recognize that an object's characteristics remain the same despite changes in the sensory input, such as distance or lighting.

Retinal Image

The image of an object that is projected on the retina. Its size increases with the size of that object and decreases with the object’s distance from the eye.

Size Constancy

The perceptual phenomenon where the size of an object is perceived to remain constant despite variations in the distance or size of the image it projects on the retina.

Binding Problem

The problem confronted by the brain of recombining the elements of a stimulus, given the fact that these elements are initially analyzed separately by different neural systems.