What Characteristic Is Important in Using Radioisotope Dating for Very

question 6

Multiple Choice

What characteristic is important in using radioisotope dating for very old items, such as rocks suspected to be over 100,000,000 years old?

• A)The radioisotope cannot be soluble in water.
• B)The radioisotope must give off light for easy measurement.
• C)The radioisotope in question must decay to another radioisotope.
• D)The radioisotope should have a very long half-life.

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Definitions:

Less Than

A mathematical relation indicating that one quantity is smaller than another.

Z-scores

A statistical measurement of how many standard deviations an element is from the mean of its population.

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Shaded Area

This refers to the region that is visually differentiated by a darker shade on a graph or diagram, often used to highlight specific sections.