Use the half-life information from this table to work the exercise. Geologists have determined that a crater was formed by a volcanic eruption. Chemical analysis of a wood chip assumed to be from a tree that died during the eruption has shown that it contains approximately 30% of its original carbon-14. Estimate how long ago the volcanic eruption occurred. (Round your answer to the nearest year.) years ago.
Use the half-life information from this table to work the exercise. Geologists have determined that a crater was formed by a volcanic eruption. Chemical analysis of a wood chip assumed to be from a tree that died during the eruption has shown that it contains approximately 30% of its original carbon-14. Estimate how long ago the volcanic eruption occurred. (Round your answer to the nearest year.) years ago.
Chapter6: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 29PT: A radiation safety officer is working with 112 grams of a radioactive substance. After 17 days,...
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Question
Transcribed Image Text:Isotope
Carbon (¹4C)
Radium (226Ra)
Polonium (210 Po)
Phosphorus (32P)
Polonium (214Po)
Half-Life
5730 years
1660 years
138 days
14 days
1/10,000 of a second
Transcribed Image Text:Use the half-life information from this table to work the exercise.
Geologists have determined that a crater was formed by a volcanic eruption. Chemical analysis of a wood chip assumed to be from a tree that died during the
eruption has shown that it contains approximately 30% of its original carbon-14. Estimate how long ago the volcanic eruption occurred. (Round your answer to the
nearest year.)
years ago
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