Nitrogen-13 Has a Half-Life of 10 Minutes

question 8

Multiple Choice

Nitrogen-13 has a half-life of 10 minutes. What amount of a 16 mg sample would remain after 30 minutes?

• A) 0.5 mg
• B) 1 mg
• C) 2 mg
• D) 4 mg
• E) 8 mg

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Definitions:

Precision

The degree to which repeated measurements under unchanged conditions show the same results.

Conditioned Stimulus

A stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

Hospital

A health care institution providing patient treatment with specialized medical and nursing staff and medical equipment.

Parking Lot

An area designated for the parking of vehicles, typically paved and marked with lines to organize spaces.