The Isotope Has a Half-Life of Years

question 85

Multiple Choice

The isotope has a half-life of years. Given an initial amount of 16 grams of the isotope, how many grams will remain after 1,000 years? After 10,000 years? Round your answers to four decimal places. ​

• A) 10.8825 g, 8.4006 g
• B) 9.3278 g, 7.2005 g
• C) 15.5464 g, 12.0008 g
• D) 6.2185 g, 4.8003 g
• E) 18.6556 g, 14.4010 g

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Definitions:

Population Bottleneck

A significant reduction in the size of a population due to environmental events (such as earthquakes, floods, fires, disease, or droughts) leading to a loss of genetic diversity.

Natural Selection

A process in biological evolution where certain traits become more common in a population because they contribute to an organism’s survival and reproduction.

Macroevolution

Evolution above the species level or leading to the formation of new species.