Radioisotope Q Has a Half-Life of 1 Day and Radioisotope

question 11

Multiple Choice

Radioisotope Q has a half-life of 1 day and radioisotope J has a half life of 25 days. In comparing the radioactivity of 1 g of Q versus 1 g of J,

• A) they have equal radioactivity.
• B) Q has 1/25 the radioactivity of J.
• C) Q has 2.5 times less radioactivity than J.
• D) Q has 25 times more radioactivity than J.
• E) A comparison cannot be made unless we know the temperature.

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Definitions:

Items

Objects, articles, or goods that are considered or listed typically in an inventory, agenda, or collection.

Autos

Vehicles propelled by their own engines or motors, primarily used for transportation.

Trucks

Large, heavy motor vehicles designed for transporting goods or performing other specific tasks.

Purchase

The act of buying goods or services.