Für Iod sind hier 39 Isotope mit gemessener Halbwertszeit aufgeführt. Davon ist nur I-127 stabil. Natürliches Iod besteht zu 100 % aus Iod-127.
Natürlich vorkommende Isotope
| Isotop | Protonen | Neutronen | Atommasse (u) | Häufigkeit (%) | Halbwertszeit |
|---|
| Iod-127 | 53 | 74 | 126,904473 | 100 | stabil |
Alle Isotope
| Isotop | Neutronen | Halbwertszeit | Hauptzerfallsart | Entdeckt |
|---|
| Iod-108 | 55 | 26,4 Millisekunden | Alpha-Zerfall | 1991 |
| Iod-109 | 56 | 92,8 Mikrosekunden | Protonenemission | 1984 |
| Iod-110 | 57 | 664 Millisekunden | Beta-plus-Zerfall | 1977 |
| Iod-111 | 58 | 2,5 Sekunden | Beta-plus-Zerfall | 1977 |
| Iod-112 | 59 | 3,34 Sekunden | Beta-plus-Zerfall | 1977 |
| Iod-113 | 60 | 6,6 Sekunden | Beta-plus-Zerfall | 1977 |
| Iod-114 | 61 | 2,01 Sekunden | Beta-plus-Zerfall | 1977 |
| Iod-115 | 62 | 1,3 Minuten | Beta-plus-Zerfall | 1969 |
| Iod-116 | 63 | 2,91 Sekunden | Beta-plus-Zerfall | 1976 |
| Iod-117 | 64 | 2,22 Minuten | Beta-plus-Zerfall | 1969 |
| Iod-118 | 65 | 13,7 Minuten | Beta-plus-Zerfall | 1957 |
| Iod-119 | 66 | 19,1 Minuten | Beta-plus-Zerfall | 1954 |
| Iod-120 | 67 | 81,67 Minuten | Beta-plus-Zerfall | 1957 |
| Iod-121 | 68 | 2,12 Stunden | Beta-plus-Zerfall | 1950 |
| Iod-122 | 69 | 3,63 Minuten | Beta-plus-Zerfall | 1950 |
| Iod-123 | 70 | 13,2232 Stunden | Beta-plus-Zerfall | 1949 |
| Iod-124 | 71 | 4,176 Tage | Beta-plus-Zerfall | 1938 |
| Iod-125 | 72 | 59,392 Tage | Elektroneneinfang | 1947 |
| Iod-126 | 73 | 12,93 Tage | Beta-plus-Zerfall | 1938 |
| Iod-127 | 74 | stabil | - | 1920 |
| Iod-128 | 75 | 24,99 Minuten | Beta-minus-Zerfall | 1934 |
| Iod-129 | 76 | 16,14 Millionen Jahre | Beta-minus-Zerfall | 1951 |
| Iod-130 | 77 | 12,36 Stunden | Beta-minus-Zerfall | 1938 |
| Iod-131 | 78 | 8,0249 Tage | Beta-minus-Zerfall | 1939 |
| Iod-132 | 79 | 2,295 Stunden | Beta-minus-Zerfall | 1948 |
| Iod-133 | 80 | 20,83 Stunden | Beta-minus-Zerfall | 1940 |
| Iod-134 | 81 | 52,5 Minuten | Beta-minus-Zerfall | 1948 |
| Iod-135 | 82 | 6,58 Stunden | Beta-minus-Zerfall | 1940 |
| Iod-136 | 83 | 83,4 Sekunden | Beta-minus-Zerfall | 1949 |
| Iod-137 | 84 | 24,13 Sekunden | Beta-minus-Zerfall | 1943 |
| Iod-138 | 85 | 6,26 Sekunden | Beta-minus-Zerfall | 1949 |
| Iod-139 | 86 | 2,28 Sekunden | Beta-minus-Zerfall | 1949 |
| Iod-140 | 87 | 588 Millisekunden | Beta-minus-Zerfall | 1972 |
| Iod-141 | 88 | 420 Millisekunden | Beta-minus-Zerfall | 1974 |
| Iod-142 | 89 | 235 Millisekunden | Beta-minus-Zerfall | 1975 |
| Iod-143 | 90 | 182 Millisekunden | Beta-minus-Zerfall | 1994 |
| Iod-144 | 91 | 94 Millisekunden | Beta-minus-Zerfall | 1994 |
| Iod-145 | 92 | 89,7 Millisekunden | Beta-minus-Zerfall | 2010 |
| Iod-146 | 93 | 94 Millisekunden | Beta-minus-Zerfall | 2018 |
Häufige Fragen