A Cubic Close-Packed Structure Has

question 141

Multiple Choice

A cubic close-packed structure has

• A) A coordination number of 4.
• B) A coordination number of 6.
• C) The same density as a hexagonal close-packed structure.
• D) Twice the density of a hexagonal close-packed structure.
• E) A coordination number of 8.

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Definitions:

Cone

A type of photoreceptor cell in the retina that is responsible for color vision and works best in relatively bright light.

Light-Sensitive

The characteristic of being responsive or reactive to light, often referring to cells or materials.

Color-Sensitive

Having a heightened responsiveness or sensitivity to colors, which can influence perception, mood, and behavior.

Rods

Retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don’t respond.