The half-life of Radium-226 is 1590 years. a) If a sample contains 200 mg, how many mg will remain after 1000 years? Round to 4 decimal places mg b) How long will it take for Radium-226 to decay to 190 mg? Round to 2 decimal places. years.

The half-life of Radium-226 is 1590 years. a) If a sample contains 200 mg, how many mg will remain after 1000 years? Round to 4 decimal places mg b) How long will it take for Radium-226 to decay to 190 mg? Round to 2 decimal places. years.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter5: Exponential And Logarithmic Functions

Section: Chapter Questions

Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...

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Question

The half-life of Radium-226 is 1590 years.
a) If a sample contains 200 mg, how many mg will remain after 1000 years? Round to 4 decimal places.
mg
b) How long will it take for Radium-226 to decay to 190 mg? Round to 2 decimal places.
years.
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