The Number of Radioactive Nuclei in a Particular Sample Decreases

question 61

Multiple Choice

The number of radioactive nuclei in a particular sample decreases to one-eighth of its original number in 9 days.What is the half-life of these nuclei?

• A)9/8 days
• B)2 days
• C)3 days
• D)8 days
• E)10 days

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Definitions:

Illegal Contracts

Agreements that are void and unenforceable by law because they involve activities that are illegal.

Rescinds

The act of revoking, canceling, or annulling a contract or agreement.

Consideration

An item of value traded between entities within an agreement to make the contract enforceable by law.

Adhesion

A contract or agreement created by one party with significant power over the other, often leading to a lack of negotiation for the weaker party.