A Sample Initially Contains 3

question 81

Multiple Choice

A sample initially contains 3.2 moles of a radioactive isotope.How much of the sample remains after four half-lives?

• A)0.20 mol
• B)1.6 mol
• C)0.80 mol
• D)0.40 mol

---

Definitions:

Existing Resources

The currently available inputs, including labor, capital, and raw materials, used for production in the economy.

Increase Resources

The act of augmenting the inputs or assets available for the production of goods and services.

Trade

The act of transacting by acquiring, disposing of, or swapping commodities and services within or between nations.

Opportunity Cost

The financial sacrifice of skipping the subsequent best choice when a decision is made.