24
2 Summary Tables
Element
Isotope
Mass
Abundance
Element
Isotope
Mass
Abundance
Xe
131.293
Nd
144.242
124 Xe 123.905893
0.354 c
142 Nd 141.907723 100
126 Xe 125.904274
0.330
143 Nd 142.909815
44.9
128 Xe 127.903531
7.099
144 Nd 143.910087
87.5
129 Xe 128.904779
98.112
145 Nd 144.912574
30.5
130 Xe 129.903508
15.129
146 Nd 145.913117
63.2
131 Xe 130.905082
78.906
148 Nd 147.916893
21.0
132 Xe 131.904154 100
150 Nd 149.920891
20.6
134 Xe 133.905395
38.782
136 Xe 135.907219
32.916
Sm
150.36
144 Sm 143.911999
11.48
Cs
132.905452
147 Sm 146.914898
56.04
133 Cs 132.905452 100
148 Sm 147.914823
42.02
149 Sm 148.917185
51.66
Ba
137.327
150 Sm 149.917276
27.59
130 Ba 129.906321
0.148
152 Sm 151.919732 100
132 Ba 131.905061
0.141
154 Sm 153.922209
85.05
134 Ba 133.904508
3.371
135 Ba 134.905689
9.194
Eu
151.964
136 Ba 135.904576
10.954
151 Eu 150.919850
91.61
137 Ba 136.905827
15.666
153 Eu 152.921230 100
138 Ba 137.905247 100
Gd
157.25
La
138.90547
152 Gd 151.919791
0.81
138 La 137.907112
0.090
154 Gd 153.920866
8.78
139 La 138.906353 100
155 Gd 154.922622
59.58
156 Gd 155.922123
82.41
Ce
140.116
157 Gd 156.923960
63.00
136 Ce 135.907172
0.209
158 Gd 157.924104 100
138 Ce 137.905991
0.284
160 Gd 159.927054
88.00
140 Ce 139.905439 100
142 Ce 141.909244
12.565
Tb
158.925347
159 Tb 158.925347 100
Pr
140.907653
141 Pr
140.907653 100