Thallium Isotopic Data
Isotope |
Isotopic Mass amu |
% Abundance |
T1/2 |
T1/2 Units |
Mass Excess KeV |
Binding Energy Per Nucleon KeV |
Decay Mode |
Branching Ratio |
176Tl | 176.00059 (21) |
| 10 | ms | 550 (200) | 7,708 (1) | A ? |
|
177Tl | 176.996427 (27) |
| 18 | ms | -3,328 (25) | 7,732.1 (1.4) | A | 73 13 |
178Tl | 177.99490 (12) |
| 255 | ms | -4,750 (110) | 7,742 (1) | A | ? |
179Tl | 178.991089 (46) |
| 270 | ms | -8,300 (43) | 7,763.7 (2.4) | A | ? |
180Tl | 179.98991 (12) |
| 1.5 | s | -9,400 (120) | 7,771 (1) | B+ ? |
|
181Tl | 180.986257 (10) |
| 3.2 | s | -12,801.1 (9.4) | 7,791.93 (5.2) | A | ? |
182Tl | 181.985667 (82) |
| 2 | s | -13,351 (76) | 7,796.5 (4.2) | B+>96 |
|
183Tl | 182.982193 (10) |
| 6.9 | s | -16,587.3 (9.7) | 7,815.67 (5.3) | B+ | ? |
184Tl | 183.981873 (53) |
| 9.7 | s | -16,885 (49) | 7,818.7 (2.7) | B+ | 97.9 7 |
185Tl | 184.978791 (58) |
| 19.5 | s | -19,756 (54) | 7,835.6 (2.9) | B+ | ? |
186Tl | 185.97833 (20) |
| 40 | s | -20,190 (180) | 7,839.2 (9.9) | B+ ? |
|
187Tl | 186.9759059 (87) |
| ~51 | s | -22,443.5 (8.1) | 7,852.46 (4.3) | B+<100 |
|
188Tl | 187.976010 (35) |
| 71 | s | -22,347 (33) | 7,853.1 (1.7) | B+ | 100 |
189Tl | 188.973588 (12) |
| 2.3 | m | -24,602 (11) | 7,866.20 (5.8) | B+ | 100 |
190Tl | 189.973877 (53) |
| 2.6 | m | -24,333 (49) | 7,865.9 (2.6) | B+ | 100 |
191Tl | 190.9717862 (81) |
| 20 | m | -26,281.0 (7.6) | 7,877.13 (4) | B+ ? |
|
192Tl | 191.972225 (34) |
| 9.6 | m | -25,872 (32) | 7,876.0 (1.6) | B+ | 100 |
193Tl | 192.97067 (12) |
| 21.6 | m | -27,320 (110) | 7,884.5 (5.7) | B+ | 100 |
194Tl | 193.97120 (15) |
| 33 | m | -26,830 (140) | 7,883.0 (7) | B+ | 100 |
195Tl | 194.969774 (15) |
| 1.16 | h | -28,155 (14) | 7,890.73 (7.1) | B+ | |
196Tl | 195.970481 (13) |
| 1.84 | h | -27,497 (12) | 7,888.29 (6.2) | B+ | 100 |
197Tl | 196.969575 (18) |
| 2.84 | h | -28,341 (16) | 7,893.51 (8.3) | B+ | 100 |
198Tl | 197.970483 (86) |
| 5.3 | h | -27,494 (80) | 7,890.1 (4) | B+ | 100 |
199Tl | 198.969877 (30) |
| 7.42 | h | -28,059 (28) | 7,893.9 (1.4) | B+ | 100 |
200Tl | 199.9709627 (62) |
| 26.1 | h | -27,048.1 (5.7) | 7,889.71 (2.9) | B+ | 100 |
201Tl | 200.970819 (16) |
| 72.912 | h | -27,182 (15) | 7,891.28 (7.5) | EC | 100 |
202Tl | 201.972106 (16) |
| 12.23 | d | -25,983 (15) | 7,886.23 (7.3) | B+ | 100 |
203Tl | 202.9723442 (14) | 29.524 (14) | stable |
| -25,761.2 (1.3) | 7,886.052 (6) |
|
|
204Tl | 203.9738635 (13) |
| 3.78 | y | -24,346.0 (1.3) | 7,880.022 (6) | B- | 97.10 12 |
205Tl | 204.9744275 (14) | 70.476 (14) | stable |
| -23,820.6 (1.3) | 7,878.393 (6) |
|
|
206Tl | 205.9761103 (15) |
| 4.2 | m | -22,253.1 (1.4) | 7,871.720 (7) | B- | 100 |
207Tl | 206.9774194 (59) |
| 4.77 | m | -21,033.7 (5.5) | 7,866.79 (2.7) | B- | 100 |
208Tl | 207.9820187 (21) |
| 3.053 | m | -16,749.5 (2) | 7,847.18 (1) | B- | 100 |
209Tl | 208.9853590 (85) |
| 2.161 | m | -13,638.0 (7.9) | 7,833.37 (3.8) | B- | 100 |
210Tl | 209.990074 (12) |
| 1.3 | m | -9,246 (12) | 7,813.59 (5.5) | B- | 100 |
211Tl | 210.99348 (22) |
| 1 | m | -6,080 (200) | 7,800 (1) | B- ? |
|
212Tl | 211.99823 (32) |
| 30 | s | -1,650 (300) | 7,780 (1) | B- ? |
|
177mTl | 176.996427 (27) |
| 230 | us | -3,328 (25) | 7,732.1 (1.4) | p | 51 8 |
179mTl | 178.991089 (46) |
| 1.6 | ms | -8,300 (43) | 7,763.7 (2.4) | A~100 |
|
181mTl | 180.986257 (10) |
| 1.7 | ms | -12,801.1 (9.4) | 7,791.93 (5.2) | B+ ? |
|
182mTl | 181.985667 (82) |
| 2.9 | s | -13,351 (76) | 7,796.5 (4.2) | A~100 |
|
183mTl | 182.982193 (10) |
| 60 | ms | -16,587.3 (9.7) | 7,815.67 (5.3) | A~1.5 |
|
184mTl | 183.981873 (53) |
| 10 | s | -16,885 (49) | 7,818.7 (2.7) | B+ ? |
|
185mTl | 184.978791 (58) |
| 1.83 | s | -19,756 (54) | 7,835.6 (2.9) | IT~100 |
|
186mTl | 185.97833 (20) |
| 27.5 | s | -20,190 (180) | 7,839.2 (9.9) | B+~100 |
|
187mTl | 186.9759059 (87) |
| 15.6 | s | -22,443.5 (8.1) | 7,852.46 (4.3) | IT | ? |
188mTl | 187.976010 (35) |
| 71 | s | -22,347 (33) | 7,853.1 (1.7) | B+ | 100 |
189mTl | 188.973588 (12) |
| 1.4 | m | -24,602 (11) | 7,866.20 (5.8) | B+~100 |
|
190mTl | 189.973877 (53) |
| 3.7 | m | -24,333 (49) | 7,865.9 (2.6) | B+ | 100 |
191mTl | 190.9717862 (81) |
| 5.22 | m | -26,281.0 (7.6) | 7,877.13 (4) | B+ | 100 |
192mTl | 191.972225 (34) |
| 10.8 | m | -25,872 (32) | 7,876.0 (1.6) | B+ | 100 |
193mTl | 192.97067 (12) |
| 2.11 | m | -27,320 (110) | 7,884.5 (5.7) | IT | 75 |
194mTl | 193.97120 (15) |
| 32.8 | m | -26,830 (140) | 7,883.0 (7) | B+ | 100 |
195mTl | 194.969774 (15) |
| 3.6 | s | -28,155 (14) | 7,890.73 (7.1) | IT | 100 |
196mTl | 195.970481 (13) |
| 1.41 | h | -27,497 (12) | 7,888.29 (6.2) | B+ | 95.5 |
197mTl | 196.969575 (18) |
| 540 | ms | -28,341 (16) | 7,893.51 (8.3) | IT | 100 |
198mTl | 197.970483 (86) |
| 1.87 | h | -27,494 (80) | 7,890.1 (4) | B+ | 54 2 |
199mTl | 198.969877 (30) |
| 28.4 | ms | -28,059 (28) | 7,893.9 (1.4) | IT | 100 |
200mTl | 199.9709627 (62) |
| 34.3 | ms | -27,048.1 (5.7) | 7,889.71 (2.9) | IT | 100 |
201mTl | 200.970819 (16) |
| 2.035 | ms | -27,182 (15) | 7,891.28 (7.5) | IT | 100 |
202mTl | 201.972106 (16) |
| 572 | us | -25,983 (15) | 7,886.23 (7.3) | 0 |
|
203mTl | 202.9723442 (14) |
| 7.7 | us | -25,761.2 (1.3) | 7,886.052 (6) | IT | 100 |
204mTl | 203.9738635 (13) |
| 63 | us | -24,346.0 (1.3) | 7,880.022 (6) | IT | 100 |
205mTl | 204.9744275 (14) |
| 2.6 | us | -23,820.6 (1.3) | 7,878.393 (6) | IT | 100 |
206mTl | 205.9761103 (15) |
| 3.74 | m | -22,253.1 (1.4) | 7,871.720 (7) | IT | 100 |
207mTl | 206.9774194 (59) |
| 1.33 | s | -21,033.7 (5.5) | 7,866.79 (2.7) | IT~100 |
|
183m1Tl | 182.982193 (10) |
| 1.48 | us | -16,587.3 (9.7) | 7,815.67 (5.3) | IT | 100 |
184m1Tl | 183.981873 (53) |
| >20 | ns | -16,885 (49) | 7,818.7 (2.7) | IT ? |
|
185m1Tl | 184.978791 (58) |
| 8.3 | ns | -19,756 (54) | 7,835.6 (2.9) | 0 |
|
186m1Tl | 185.97833 (20) |
| 2.9 | s | -20,190 (180) | 7,839.2 (9.9) | IT | 100 |
188m1Tl | 187.976010 (35) |
| 41 | ms | -22,347 (33) | 7,853.1 (1.7) | IT~100 |
|
190m1Tl | 189.973877 (53) |
| 750 | us | -24,333 (49) | 7,865.9 (2.6) | IT | 100 |
198m1Tl | 197.970483 (86) |
| 32.1 | ms | -27,494 (80) | 7,890.1 (4) | IT | 100 |
204m1Tl | 203.9738635 (13) |
| 2.6 | us | -24,346.0 (1.3) | 7,880.022 (6) | IT | 100 |
182m1Tl | 181.985667 (82) |
|
|
| -13,351 (76) | 7,796.5 (4.2) | 0 |
|
190m2Tl | 189.973877 (53) |
| >1 | us | -24,333 (49) | 7,865.9 (2.6) | IT ? |
|
192m1Tl | 191.972225 (34) |
|
|
| -25,872 (32) | 7,876.0 (1.6) | 0 |
|
204m1Tl | 203.9738635 (13) |
| 1.6 | us | -24,346.0 (1.3) | 7,880.022 (6) | IT | 100 |
Data Source: ENSDF March 2005
©Radiochemistry Society 2005