Suppose the Half-Life of a Radioactive Isotope Is 30,000 Years

question 34

Multiple Choice

Suppose the half-life of a radioactive isotope is 30,000 years.Of the total amount of that element assimilated by living organisms into their tissues,0.004 percent consists of the radioactive isotope.If you were to find a skeleton of an organism that had 0.0005 percent of the element as the radioactive isotope,it would be estimated to be _______ years old.

• A) 10,000
• B) 60,000
• C) 90,000
• D) 120,000
• E) 240,000

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Definitions:

Neurotransmitter

Chemical substances in the nervous system that transmit signals across a synapse from one neuron to another.

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A medical imaging technique that uses computer-processed combinations of multiple X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object.

Magnetic Resonance Imaging

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High-Resolution

Pertaining to an image or display with a very high level of detail and clarity due to a large number of pixels or units of information per inch.