Thulium Isotopic Data

 

 

 

Isotope

 

Isotopic Mass

amu

 

% Abundance

 

T1/2

 

T1/2

Units

 

Mass Excess

KeV

 

Binding Energy

Per Nucleon

KeV

 

Decay

Mode

 

Branching

Ratio

145Tm

144.97007 (43)

 

3.1

us

-27,880 (400)

7,891 (3)

p

100

146Tm

145.96643 (43)

 

240

ms

-31,280 (400)

7,916 (3)

p~100

 

147Tm

146.96096 (32)

 

580

ms

-36,370 (300)

7,951 (2)

B+

85 5

148Tm

147.95784 (43)

 

700

ms

-39,270 (400)

7,972 (3)

B+

100

149Tm

148.95272 (32)

 

900

ms

-44,040 (300)

8,005 (2)

B+

100

150Tm

149.94996 (21)

 

3

s

-46,610 (200)

8,022 (1)

B+

100

151Tm

150.945483 (22)

 

4.17

s

-50,782 (20)

8,050.1 (1.3)

B+

100

152Tm

151.944422 (79)

 

8

s

-51,771 (74)

8,056.8 (4.8)

B+

100

153Tm

152.942012 (20)

 

1.48

s

-54,015 (18)

8,071.5 (1.2)

A

91 3

154Tm

153.941568 (15)

 

8.1

s

-54,429 (14)

8,074.22 (9.4)

A

54 5

155Tm

154.939199 (14)

 

21.6

s

-56,635 (13)

8,088.44 (8.5)

B+

98.1 3

156Tm

155.938980 (17)

 

83.8

s

-56,840 (16)

8,089.6 (1)

B+~100

 

157Tm

156.936973 (30)

 

3.63

m

-58,709 (28)

8,101.4 (1.8)

B+

100

158Tm

157.936980 (27)

 

3.98

m

-58,703 (25)

8,101.2 (1.6)

B+

100

159Tm

158.934975 (30)

 

9.13

m

-60,570 (28)

8,112.8 (1.8)

B+

100

160Tm

159.935263 (37)

 

9.4

m

-60,302 (34)

8,110.8 (2.1)

B+

100

161Tm

160.933549 (30)

 

30.2

m

-61,899 (28)

8,120.5 (1.7)

B+

100

162Tm

161.933995 (28)

 

21.7

m

-61,484 (26)

8,117.6 (1.6)

B+

100

163Tm

162.9326511 (65)

 

1.81

h

-62,735.1 (6)

8,125.02 (3.7)

B+

100

164Tm

163.933560 (30)

 

2

m

-61,888 (28)

8,119.5 (1.7)

EC

165Tm

164.9324355 (36)

 

30.06

h

-62,935.9 (3.3)

8,125.58 (2)

B+

100

166Tm

165.933554 (13)

 

7.7

h

-61,894 (12)

8,118.98 (7.1)

B+

100

167Tm

166.9328516 (29)

 

9.25

d

-62,548.3 (2.7)

8,122.61 (1.6)

EC

100

168Tm

167.9341728 (31)

 

93.1

d

-61,317.7 (2.9)

8,114.98 (1.7)

B+~100

 

169Tm

168.9342133 (27)

100

stable

 

-61,280.0 (2.5)

8,114.50 (1.5)

 

 

170Tm

169.9358014 (27)

 

128.6

d

-59,800.6 (2.5)

8,105.55 (1.5)

B-~100

 

171Tm

170.9364294 (28)

 

1.92

y

-59,215.6 (2.6)

8,101.92 (1.5)

B-

100

172Tm

171.9384000 (64)

 

63.6

h

-57,380.0 (6)

8,091.07 (3.5)

B-

100

173Tm

172.9396036 (55)

 

8.24

h

-56,258.9 (5.1)

8,084.48 (2.9)

B-

100

174Tm

173.942169 (48)

 

5.4

m

-53,870 (45)

8,070.7 (2.6)

B-

100

175Tm

174.943837 (54)

 

15.2

m

-52,316 (50)

8,061.8 (2.9)

B-

100

176Tm

175.94699 (11)

 

1.85

m

-49,370 (100)

8,045.1 (5.7)

B-

100

177Tm

176.94904 (32)

 

90

s

-47,470 (300)

8,035 (2)

B-

100

178Tm

177.95264 (43)

 

30

s

-44,120 (400)

8,016 (2)

B- ?

 

179Tm

178.95534 (54)

 

20

s

-41,600 (500)

8,002 (3)

B- ?

 

146mTm

145.96643 (43)

 

72

ms

-31,280 (400)

7,916 (3)

p

?

147mTm

146.96096 (32)

 

360

us

-36,370 (300)

7,951 (2)

p

100

150mTm

149.94996 (21)

 

2.2

s

-46,610 (200)

8,022 (1)

B+

100

151mTm

150.945483 (22)

 

6.6

s

-50,782 (20)

8,050.1 (1.3)

B+

100

152mTm

151.944422 (79)

 

5.2

s

-51,771 (74)

8,056.8 (4.8)

B+

100

153mTm

152.942012 (20)

 

2.5

s

-54,015 (18)

8,071.5 (1.2)

A

92 3

154mTm

153.941568 (15)

 

3.3

s

-54,429 (14)

8,074.22 (9.4)

A

58 5

155mTm

154.939199 (14)

 

45

s

-56,635 (13)

8,088.44 (8.5)

B+>92

 

156mTm

155.938980 (17)

 

~400

ns

-56,840 (16)

8,089.6 (1)

IT

100

158mTm

157.936980 (27)

 

~20

ns

-58,703 (25)

8,101.2 (1.6)

IT ?

 

160mTm

159.935263 (37)

 

74.5

s

-60,302 (34)

8,110.8 (2.1)

IT

85 5

161mTm

160.933549 (30)

 

5

m

-61,899 (28)

8,120.5 (1.7)

B+ ?

 

162mTm

161.933995 (28)

 

24.3

s

-61,484 (26)

8,117.6 (1.6)

IT ?

 

164mTm

163.933560 (30)

 

5.1

m

-61,888 (28)

8,119.5 (1.7)

IT~80

 

166mTm

165.933554 (13)

 

340

ms

-61,894 (12)

8,118.98 (7.1)

IT

100

167mTm

166.9328516 (29)

 

1.16

us

-62,548.3 (2.7)

8,122.61 (1.6)

IT

100

170mTm

169.9358014 (27)

 

4.12

us

-59,800.6 (2.5)

8,105.55 (1.5)

IT

100

171mTm

170.9364294 (28)

 

2.6

us

-59,215.6 (2.6)

8,101.92 (1.5)

IT

100

173mTm

172.9396036 (55)

 

10

us

-56,258.9 (5.1)

8,084.48 (2.9)

0

 

150m1Tm

149.94996 (21)

 

5.2

ms

-46,610 (200)

8,022 (1)

IT

100

151m1Tm

150.945483 (22)

 

451

ns

-50,782 (20)

8,050.1 (1.3)

IT

100

156m1Tm

155.938980 (17)

 

19

s

-56,840 (16)

8,089.6 (1)

0

 

167m1Tm

166.9328516 (29)

 

0.9

us

-62,548.3 (2.7)

8,122.61 (1.6)

IT

100

Data Source: ENSDF March 2005

©Radiochemistry Society 2005