1) According to your data, what are the approximate half-lives of the elements A, B, C, and D? A: B: С: D: 2) What part of an original isotope's number of atoms remains have two half-lives? 3) What happens to a radioactive isotope as it decays? Does the radioactive material disappear? Explain.

1) According to your data, what are the approximate half-lives of the elements A, B, C, and D? A: B: С: D: 2) What part of an original isotope's number of atoms remains have two half-lives? 3) What happens to a radioactive isotope as it decays? Does the radioactive material disappear? Explain.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Data Table:
Remaining Radioactive Atoms
Years
Element A
Element B
Element C
Element D
100
100
100
100
1,000
95
85
90
50
2,000
90
72
81
25
3,000
86
61
73
13
4,000
81
52
66
6
5,000
77
44
59
3
6,000
74
38
53
7,000
70
32
48
1
8,000
66
27
43
9,000
63
23
39
10,000
60
20
35
11,000
57
17
31
12,000
54
14
28
13,000
51
12
25
14,000
49
10
23
15,000
46
9.
21
16,000
44
7
19
17,000
42
6
17
18,000
40
5
15
19,000
38
5
14
20,000
36
4
12
ooo ooo

1) According to your data, what are the approximate half-lives of the elements A, B, C, and D?
А:
В:
С:
D:
2) What part of an original isotope's number of atoms remains have two half-lives?
3) What happens to a radioactive isotope as it decays? Does the radioactive material disappear? Explain.
4) After three half-lives of an isotope, 1 billion (one-eighth) of the original isotope's atoms still remain in
a certain amount of this element. How many atoms of the daughter product would you expect to be
present?

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