Germanium Isotopic Data
Isotope |
Isotopic Mass amu |
% Abundance |
T1/2 |
T1/2 Units |
Mass Excess KeV |
Binding Energy Per Nucleon KeV |
Decay Mode |
Branching Ratio |
58Ge | 57.99101 (34) |
|
|
| -8,370 (320) | 7,784 (5) | 2p ? |
|
59Ge | 58.98175 (30) |
|
|
| -17,000 (280) | 7,935 (5) | 2p ? |
|
60Ge | 59.97019 (25) |
| 30 | ms | -27,770 (230) | 8,117 (4) | B+ ? |
|
61Ge | 60.96379 (32) |
| 39 | ms | -33,730 (300) | 8,214 (5) | B+ | 100 |
62Ge | 61.95465 (15) |
| 130 | ms | -42,240 (140) | 8,349 (2) | B+ | 100 |
63Ge | 62.94964 (21) |
| 142 | ms | -46,910 (200) | 8,419 (3) | B+ | 100 |
64Ge | 63.941653 (34) |
| 63.7 | s | -54,350 (32) | 8,529.4 (5) | B+ | 100 |
65Ge | 64.93944 (11) |
| 30.9 | s | -56,410 (100) | 8,554 (1.5) | B+ | 100 |
66Ge | 65.933843 (32) |
| 2.26 | h | -61,624 (30) | 8,625.7 (4.6) | B+ | 100 |
67Ge | 66.9327341 (50) |
| 18.9 | m | -62,657.8 (4.7) | 8,632.85 (7) | B+ | 100 |
68Ge | 67.9280942 (67) |
| 270.95 | d | -66,979.8 (6.2) | 8,688.15 (9.2) | EC | 100 |
69Ge | 68.9279645 (14) |
| 39.05 | h | -67,100.6 (1.3) | 8,680.96 (1.9) | B+ | 100 |
70Ge | 69.9242474 (11) | 20.84 (87) | stable |
| -70,563.1 (1) | 8,721.72 (1.5) |
|
|
71Ge | 70.9249510 (11) |
| 11.43 | d | -69,907.7 (1) | 8,703.33 (1.4) | EC | 100 |
72Ge | 71.9220758 (18) | 27.54 (34) | stable |
| -72,585.9 (1.6) | 8,731.75 (2.3) |
|
|
73Ge | 72.9234589 (18) | 7.73 (5) | stable |
| -71,297.5 (1.6) | 8,705.05 (2.2) |
|
|
74Ge | 73.9211778 (18) | 36.28 (73) | stable |
| -73,422.4 (1.6) | 8,725.20 (2.2) |
|
|
75Ge | 74.9228589 (18) |
| 82.78 | m | -71,856.4 (1.6) | 8,695.60 (2.2) | B- | 100 |
76Ge | 75.9214026 (18) | 7.61 (38) | 1.58 | Zy | -73,213.0 (1.7) | 8,705.24 (2.2) |
|
|
77Ge | 76.9235486 (18) |
| 11.3 | h | -71,214.0 (1.7) | 8,671.04 (2.2) | B- | 100 |
78Ge | 77.9228527 (42) |
| 88 | m | -71,862.2 (3.9) | 8,671.67 (5) | B- | 100 |
79Ge | 78.925401 (96) |
| 18.98 | s | -69,489 (90) | 8,634 (1.1) | B- | 100 |
80Ge | 79.925372 (30) |
| 29.5 | s | -69,515 (28) | 8,627.3 (3.5) | B- | 100 |
81Ge | 80.92882 (13) |
| 8 | s | -66,300 (120) | 8,581 (1.5) | B- | 100 |
82Ge | 81.92955 (26) |
| 4.55 | s | -65,620 (240) | 8,566 (3) | B- | 100 |
83Ge | 82.93462 (21) |
| 1.85 | s | -60,900 (200) | 8,503 (2) | B- | 100 |
84Ge | 83.93747 (32) |
| 954 | ms | -58,250 (300) | 8,467 (4) | B- | 100 |
85Ge | 84.94303 (43) |
| 540 | ms | -53,070 (400) | 8,401 (5) | B- | 100 |
86Ge | 85.94649 (54) |
| 300 | ms | -49,840 (500) | 8,360 (6) | B- ? |
|
87Ge | 86.95251 (54) |
| 150 | ms | -44,240 (500) | 8,292 (6) | B- ? |
|
88Ge | 87.95691 (75) |
| 80 | ms | -40,140 (700) | 8,243 (8) | B- ? |
|
89Ge | 88.96383 (97) |
| 50 | ms | -33,690 (900) | 8,170 (10) | B- ? |
|
67mGe | 66.9327341 (50) |
| 13.7 | us | -62,657.8 (4.7) | 8,632.85 (7) | IT | 100 |
69mGe | 68.9279645 (14) |
| 5.1 | us | -67,100.6 (1.3) | 8,680.96 (1.9) | IT | 100 |
71mGe | 70.9249510 (11) |
| 20.4 | ms | -69,907.7 (1) | 8,703.33 (1.4) | IT | 100 |
72mGe | 71.9220758 (18) |
| 444.2 | ns | -72,585.9 (1.6) | 8,731.75 (2.3) | 0 |
|
73mGe | 72.9234589 (18) |
| 2.92 | us | -71,297.5 (1.6) | 8,705.05 (2.2) | IT | 100 |
75mGe | 74.9228589 (18) |
| 47.7 | s | -71,856.4 (1.6) | 8,695.60 (2.2) | IT~100 |
|
77mGe | 76.9235486 (18) |
| 52.9 | s | -71,214.0 (1.7) | 8,671.04 (2.2) | B- | 81 2 |
79mGe | 78.925401 (96) |
| 39 | s | -69,489 (90) | 8,634 (1.1) | B- | 96 1 |
81mGe | 80.92882 (13) |
| 8 | s | -66,300 (120) | 8,581 (1.5) | B-~100 |
|
67m1Ge | 66.9327341 (50) |
| 110.9 | ns | -62,657.8 (4.7) | 8,632.85 (7) | IT | 100 |
69m1Ge | 68.9279645 (14) |
| 2.81 | us | -67,100.6 (1.3) | 8,680.96 (1.9) | IT | 100 |
73m1Ge | 72.9234589 (18) |
| 499 | ms | -71,297.5 (1.6) | 8,705.05 (2.2) | IT | 100 |
Data Source: ENSDF March 2005
©Radiochemistry Society 2005