Alhount of the new element decay. Suppose that you start with 100 grams of a certain
that decays to half its original amount in 50 000 years.
1. Complete the following table so that the amount of parent material (original radioisotope) and the
amount of daughter material (nonradioactive end product) are correct for the number of years that
have passed
Amount of Parent Material
Amount of Daughter Material
Years That Have Passed
100 grams
0
grams
1.
0
5.
50 000
2.
6.
100 000
3.
7.
150 000
4.
8.
200 000
3.125 grams
96.875 grams
250 000
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