Mathematics, 14.01.2020 21:31 11232003
What percent of a present amount of radioactive radium (226ra) will remain after 1200 years? the half life of 226ra is 1599 years.
Answers: 2
= mass remaining
=original mass.
=half life
*100%
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What percent of a present amount of radioactive radium (226ra) will remain after 1200 years? the ha...
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