The Ratio of Parent to Daughter Isotopes in a Radioactive

question 63

Multiple Choice

The ratio of parent to daughter isotopes in a radioactive decay process is 0.40. How many half- lives have elapsed since the material was 100% parent atoms?

• A) <1
• B) >3
• C) 2- 3
• D) 1- 2

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Definitions:

Components

Fundamental parts or elements that make up a system or compound.

Attitude

A psychological tendency expressed by evaluating a particular entity with some degree of favor or disfavor.

Component

A part or element of a larger whole, usually contributing to the function or structure of something.

Attitude

A mental inclination demonstrated through assessing a specific entity with a certain level of liking or disliking.