A Radioactive Isotope Is

question 9

Multiple Choice

A radioactive isotope is

• A) a pair of identical molecules.
• B) two molecules with the same tonicity.
• C) an element with an unstable nucleus that decays to a more stable form.
• D) an element that generates electrons.

---

Definitions:

Substitution Effect

The change in the consumption of goods as a result of a change in their relative prices, holding the consumer's utility level constant.

Income

The financial gain received by an individual or business, typically expressed as a total earnings or profit.

Price

The amount of money required to purchase a good or service, or the value that consumers are willing to pay for it.

Apples

Edible fruits with a sweet taste and crisp texture, coming in many varieties and colors like red, green, and yellow.