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