The Atomic Radius of a Gold Atom Is About 130 $\pi$

question 53

Multiple Choice

The atomic radius of a gold atom is about 130 pm.Determine the maximum number of atoms that would create a 2 *10² cm³ sphere (roughly the size of a baseball) .The volume of a sphere is 4 $\pi$ r³/3.

• A)2.1 * 10⁵
• B)2 *10²⁵
• C)2 * 10¹⁷
• D)2.7 * 10²⁴
• E)2.1* 10³¹

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Definitions:

Focus

Concentration on a particular task or object, maintaining attention on it.

Selective Attention

The process of focusing on a particular object in the environment for a certain period of time, while ignoring irrelevant information.

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Deeply absorbed or completely occupied with something, to the point of being unaware of anything else.

Clattering

The act of making a series of loud, rattling sounds, as when objects strike against each other.