Gold (Au) Has a Face-Centered Cubic Structure with a Unit

question 146

Multiple Choice

Gold (Au) has a face-centered cubic structure with a unit cell edge length of 407.8 pm.What is the density of each individual gold atom?

• A)21.44 g/cm³
• B)26.06 g/cm³
• C)13.10 g/cm³
• D)6.550 g/cm³
• E)19.28 g/cm³

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Definitions:

Proximal Stimulus

The stimulus energies that directly interact with sensory receptors.

Distal Stimulus

An object or event in the outside world that provides the source of information that our sensory receptors respond to, as opposed to the perception (proximal stimulus) of the object or event formed in our minds.

Retina

The light-sensitive layer at the back of the eye that captures images and sends them to the brain via the optic nerve.

Depth Perception

The visual ability to perceive the world in three dimensions and to judge the distance of objects.