True or false----The half life of a radioactive isotope changes as the isotope decays?
Answer:
False. The half life of a radioactive isotope will remain constant no matter what. What changes is the amount of the isotope that decays. For example if the half life of an isotope is 4 years and you have 4 grams...then after four years only two grams would have decayed. After the nex four years only 1gram would have decayed which half of two and in the next four years only 0.5 grams would have decayed and so on.
yes!
False, the half life stays the same. It just cuts the remaining radioactive material in half.
False... an isotope's half-life is precisely what defines its rate of decay.
False
The half life is a stable property of any specific isotope.
False.
Current scientific thinking is that the half life of a particular radioisotope is constant.
False. The half-life is a property of a radioactive isotope that never changes; it give the time it takes for quantity of the isotope to fall by one-half. The only thing that changes over time is the quantity of the isotope.
False. The half life is a property of the isotope.
Do remember however that the rate of decay in any given sample decreases as the overall amount of the isotope in the sample is decreased.
Is that what you're thinking of?
The question is kind of ambiguous..If radioactive atom A has a half life of soemthing, once it decays, and becomes element B, element B might have a different half-life.
But if you have a chunk of radioactive material A, that half-life of that material is totally constant, no matter how much has decayed.
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