The Ratio of the Number of Protons to Neutrons in the Nucleus

question 63

Multiple Choice

The ratio of the number of protons to neutrons in the nucleus of naturally occurring isotopes tends to vary with atomic number in what manner?

• A) decreases with greater atomic number
• B) increases with greater atomic number
• C) remains constant for entire range of atomic numbers
• D) is maximum for atomic number = 60

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Definitions:

Marginal Revenue

The additional income generated from selling one more unit of a product is known as marginal revenue.

Marginal Cost

The financial impact of producing an extra unit of a product or service.

Perfectly Competitive Firms

Firms that operate in a market where no single buyer or seller has the power to influence the price of the product, and where the product offered is homogeneous, with many sellers and buyers.

AVC

Average Variable Cost; the total variable costs (costs that change with the level of output) divided by the quantity of output produced.