Phosphorus-32, a Beta Emitter, Is a Radioactive Isotope Used in Many

question 76

Multiple Choice

Phosphorus-32, a beta emitter, is a radioactive isotope used in many biomedical applications.How much time has passed if the ratio of 32S/ 32P is 4/5? (The half-life of phosphorus-32 is 14.3 days.)

• A)11.4 days
• B)16.7 days
• C)4.60 days
• D)12.1 days
• E)16.9 days

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Definitions:

Straight-Line Methods

Straight-line methods are used in accounting to allocate the cost of an asset evenly over its useful life for the purposes of depreciation.