Suppose the isotope your Skittles® represented was uranium-238 and the trials represent the number of half-lives. How old was the sample at the end of your tests? Use Table 1 in the Introduction to help you answer this question. Include your calculations.

Living By Chemistry: First Edition Textbook
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ChapterU1: Alchemy: Matter, Atomic Structure, And Bonding
SectionU1.15: Nuclear Quest: Nuclear Reactions
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  1. Suppose the isotope your Skittles® represented was uranium-238 and the trials represent the number of half-lives. How old was the sample at the end of your tests? Use Table 1 in the Introduction to help you answer this question. Include your calculations.

 

Trial

Skittles® “S” Up (Parent Atoms)

Skittles® “S” Down (Daughter Atoms) for each Trial

Skittles® “S” Down (Daughter Atoms) Cumulative Total

0

57

-

-

1

31

26

26

2

16

15

41

3

6

9

50

4

3

3

53

5

1

2

55

6

0

1

56

7

-

-

-

8

-

-

-

9

-

-

-

10

-

-

-

 

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