If Three Samples Have the Half-Lives Listed Below,which Sample Would

question 29

Multiple Choice

If three samples have the half-lives listed below,which sample would remain radioactive the longest?

• A)a sample with a half-life of 20 minutes
• B)a sample with a half-life of 20 hours
• C)a sample with a half-life of 20 years
• D)a sample with a half-life of 20 million years
• E)none of the above

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Definitions:

Puberty

A developmental stage marking the period between childhood and adolescence, characterized by physical and hormonal changes leading to sexual maturity.

Young Adulthood

A life stage occurring after adolescence, typically ranging from ages 20 to 40, characterized by increased independence, identity exploration, and responsibility.

Social Aspects

Pertaining to how people interact within societal constructs, including norms, relationships, institutions, and community behaviors.

Lithium

A chemical element used in psychiatric medication to treat bipolar disorder by stabilizing mood.