The Half-Life of a Certain Radioactive Substance Is 9 Years

question 14

Multiple Choice

The half-life of a certain radioactive substance is 9 years.What is the yearly decay factor? Round your answer to two decimal places. ​

• A) 4.50
• B) 1.56
• C) 0.93
• D) None of the above

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Definitions:

Diaphysis

The main or mid section (shaft) of a long bone, which is typically cylindrical in shape and contains the bone marrow and growth plates.

Ossification

The process by which bone is formed, renewed, and repaired in the body.

Cranium

The part of the skull that encloses the brain.

Uric Acid

A chemical created when the body breaks down substances called purines, excessive amounts of which can lead to gout and kidney stones.