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| decay half-life; half-life time; half-life value | |||
| time to half value | |||
| half-life | |||
| elimination half-life; metabolic half-life; metabolic half-time | |||
| effective life | |||
| half-life The time required for one-half the atoms of a given amount of radioactive material to undergo radioactive decay | |||
| half change value | |||
| half-life period; radioactive half-life | |||
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| radioactive half-life | |||
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halveringstid : 16 do fraz, 8 tematyki |
| Chemia | 3 |
| Energia jądrowa i termojądrowa | 1 |
| Fizyka jądrowa | 1 |
| Medycyna | 1 |
| Nauka o ziemi | 2 |
| Opieka zdrowotna | 3 |
| Pospolicie | 3 |
| Technika i technologia | 2 |