Which of the Following Statements About Radioisotopes Is False

question 18

Multiple Choice

Which of the following statements about radioisotopes is false?

• A) The half-life of a radioisotope does not vary with temperature or pressure.
• B) Carbon-14 is typically used to date the rocks in which fossils are found.
• C) The ratio of carbon-14 to carbon-12 is used in dating fossils.
• D) Potassium-40 has an extremely long half-life.
• E) The nucleus of a radioisotope can change into that of a different element during decay.

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Definitions:

Competition

The rivalry among businesses to attract customers and achieve market dominance.

Quoting Prices

The action of providing a prospective customer with a price at which a seller agrees to sell goods or services.

Excess Capacity

The situation where a company's production facilities are capable of producing more than the demand for its products.

Variable Costs

Expenses that vary directly with the level of production or sales volume, such as raw materials and direct labor.