Yttrium Isotopic Data
Isotope |
Isotopic Mass amu |
% Abundance |
T1/2 |
T1/2 Units |
Mass Excess KeV |
Binding Energy Per Nucleon KeV |
Decay Mode |
Branching Ratio |
76Y | 75.95845 (54) |
| 500 | ns | -38,700 (500) | 8,179 (7) | B+ ? |
|
77Y | 76.949645 (67) |
| 63 | ms | -46,905 (62) | 8,284 (1) | B+ | ? |
78Y | 77.94361 (43) |
| 54 | ms | -52,530 (400) | 8,354 (5) | B+ | 100 |
79Y | 78.93735 (48) |
| 14.8 | s | -58,360 (450) | 8,424 (5.7) | B+ | 100 |
80Y | 79.93428 (19) |
| 30.1 | s | -61,220 (180) | 8,455 (2.2) | B+ | 100 |
81Y | 80.929127 (67) |
| 70.4 | s | -66,017 (62) | 8,509.7 (7.7) | B+ | 100 |
82Y | 81.92679 (11) |
| 8.3 | s | -68,190 (100) | 8,531 (1.3) | B+ | 100 |
83Y | 82.922354 (48) |
| 7.08 | m | -72,327 (44) | 8,575.1 (5.3) | B+ | 100 |
84Y | 83.920388 (98) |
| 4.6 | s | -74,158 (91) | 8,591 (1.1) | B+ | 100 |
85Y | 84.916433 (20) |
| 2.68 | h | -77,842 (19) | 8,628.1 (2.2) | B+ | 100 |
86Y | 85.914886 (15) |
| 14.74 | h | -79,284 (14) | 8,638.4 (1.6) | B+ | 100 |
87Y | 86.9108757 (17) |
| 79.8 | h | -83,018.7 (1.6) | 8,674.85 (1.8) | B+ | 100 |
88Y | 87.9095011 (20) |
| 106.65 | d | -84,299.1 (1.8) | 8,682.54 (2.1) | B+ | 100 |
89Y | 88.9058483 (27) | 100 | stable |
| -87,701.7 (2.6) | 8,713.90 (2.9) |
|
|
90Y | 89.9071519 (27) |
| 64 | h | -86,487.5 (2.6) | 8,693.27 (2.8) | B- | 100 |
91Y | 90.9073048 (31) |
| 58.51 | d | -86,345.0 (2.9) | 8,684.87 (3.2) | B- | 100 |
92Y | 91.9089491 (99) |
| 3.54 | h | -84,813.3 (9.3) | 8,661.6 (1) | B- | 100 |
93Y | 92.909583 (11) |
| 10.18 | h | -84,223 (11) | 8,648.9 (1.1) | B- | 100 |
94Y | 93.9115952 (77) |
| 18.7 | m | -82,348.5 (7.2) | 8,622.77 (7.6) | B- | 100 |
95Y | 94.9128206 (78) |
| 10.3 | m | -81,207.1 (7.2) | 8,604.95 (7.6) | B- | 100 |
96Y | 95.915891 (25) |
| 5.34 | s | -78,347 (23) | 8,569.6 (2.4) | B- | 100 |
97Y | 96.918134 (13) |
| 3.75 | s | -76,258 (12) | 8,542.9 (1.2) | B- | 100 |
98Y | 97.922203 (26) |
| 548 | ms | -72,467 (25) | 8,499.4 (2.5) | B- | 100 |
99Y | 98.924636 (26) |
| 1.47 | s | -70,201 (24) | 8,472.2 (2.5) | B- | 100 |
100Y | 99.927757 (84) |
| 735 | ms | -67,294 (79) | 8,439.1 (7.9) | B- | 100 |
101Y | 100.93031 (10) |
| 426 | ms | -64,912 (95) | 8,411.9 (9.4) | B- | 100 |
102Y | 101.933556 (93) |
| 300 | ms | -61,892 (86) | 8,379.0 (8.5) | B- | 100 |
103Y | 102.93673 (32) |
| 224 | ms | -58,940 (300) | 8,347 (3) | B- | 100 |
104Y | 103.94105 (43) |
| 180 | ms | -54,910 (400) | 8,306 (4) | B- | 100 |
105Y | 104.94487 (54) |
| 60 | ms | -51,350 (500) | 8,270 (5) | B- ? |
|
106Y | 105.94979 (75) |
| 50 | ms | -46,770 (700) | 8,225 (7) | B- ? |
|
107Y | 106.95414 (54) |
| 30 | ms | -42,720 (500) | 8,185 (5) | B- ? |
|
108Y | 107.95948 (86) |
| 20 | ms | -37,740 (800) | 8,138 (7) | B- ? |
|
78mY | 77.94361 (43) |
| 5.8 | s | -52,530 (400) | 8,354 (5) | B+ | 100 |
80mY | 79.93428 (19) |
| 4.8 | s | -61,220 (180) | 8,455 (2.2) | IT | 81 2 |
82mY | 81.92679 (11) |
| 268 | ns | -68,190 (100) | 8,531 (1.3) | IT | 100 |
83mY | 82.922354 (48) |
| 2.85 | m | -72,327 (44) | 8,575.1 (5.3) | B+ | 60 5 |
84mY | 83.920388 (98) |
| 39.5 | m | -74,158 (91) | 8,591 (1.1) | B+ | 100 |
85mY | 84.916433 (20) |
| 4.86 | h | -77,842 (19) | 8,628.1 (2.2) | B+~100 |
|
86mY | 85.914886 (15) |
| 48 | m | -79,284 (14) | 8,638.4 (1.6) | IT | 99.31 4 |
87mY | 86.9108757 (17) |
| 13.37 | h | -83,018.7 (1.6) | 8,674.85 (1.8) | IT | 98.43 10 |
88mY | 87.9095011 (20) |
| 13.9 | ms | -84,299.1 (1.8) | 8,682.54 (2.1) | IT | 100 |
89mY | 88.9058483 (27) |
| 15.663 | s | -87,701.7 (2.6) | 8,713.90 (2.9) | IT | 100 |
90mY | 89.9071519 (27) |
| 3.19 | h | -86,487.5 (2.6) | 8,693.27 (2.8) | IT~100 |
|
91mY | 90.9073048 (31) |
| 49.71 | m | -86,345.0 (2.9) | 8,684.87 (3.2) | IT>98.5 |
|
93mY | 92.909583 (11) |
| 820 | ms | -84,223 (11) | 8,648.9 (1.1) | IT | 100 |
96mY | 95.915891 (25) |
| 9.6 | s | -78,347 (23) | 8,569.6 (2.4) | B- | 100 |
97mY | 96.918134 (13) |
| 1.17 | s | -76,258 (12) | 8,542.9 (1.2) | B->99.3 |
|
98mY | 97.922203 (26) |
| 2 | s | -72,467 (25) | 8,499.4 (2.5) | B- | ? |
99mY | 98.924636 (26) |
| 8.6 | us | -70,201 (24) | 8,472.2 (2.5) | IT | 100 |
100mY | 99.927757 (84) |
| 940 | ms | -67,294 (79) | 8,439.1 (7.9) | B- | 100 |
102mY | 101.933556 (93) |
| 360 | ms | -61,892 (86) | 8,379.0 (8.5) | B- | 100 |
80m1Y | 79.93428 (19) |
| 4.7 | us | -61,220 (180) | 8,455 (2.2) | IT | 100 |
86m1Y | 85.914886 (15) |
| 125 | ns | -79,284 (14) | 8,638.4 (1.6) | IT | 100 |
88m1Y | 87.9095011 (20) |
| 300 | us | -84,299.1 (1.8) | 8,682.54 (2.1) | 0 |
|
97m1Y | 96.918134 (13) |
| 142 | ms | -76,258 (12) | 8,542.9 (1.2) | IT GE 80 |
|
98m1Y | 97.922203 (26) |
| 7.6 | us | -72,467 (25) | 8,499.4 (2.5) | IT | 100 |
98m2Y | 97.922203 (26) |
| 620 | ns | -72,467 (25) | 8,499.4 (2.5) | IT | 100 |
Data Source: ENSDF March 2005
©Radiochemistry Society 2005