A Certain Solid Metallic Element Has a Density 7

question 21

Multiple Choice

A certain solid metallic element has a density 7.87 g/cm³ and a molar mass of 55.85 g/mol. It crystallizes with a cubic unit cell, with an edge length of 286.7 pm. Calculate the number of atoms per unit cell.

• A)1
• B)2
• C)3
• D)4
• E)6

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Definitions:

Laffer Curve

A theoretical representation of the relationship between government revenue raised by taxation and all possible rates of taxation, suggesting that higher tax rates beyond a certain point actually decrease total revenue.

Elasticities

Measures of how much the quantity demanded or supplied of a good responds to changes in price, income, or other factors.

Demand

The total quantity of goods or services that consumers are willing and able to purchase at a given price level in a market.

Supply

The total amount of a specific good or service that is available to consumers in a market at a given time and price.