Page 157 - Soil and water contamination, 2nd edition
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144 Soil and Water Contamination
160
Stable isotope
Radioactive isotope
150
Natural radioactive isotope
Fission product
140
130
120
α emission
110
100
90
Number of neutrons (N) 80 β emission
70
N
60 = 1
Z
50
40
Positron emission or
30 electron capture
20
10
6642 0
0 10 20 30 40 50 60 70 80 90 100 110
Number of protons (Z)
Figure 8.1 Nuclei stability band (after Pattenden, 2001).
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