Question

A) Radon gas has a half-life of 3.83 days. If 3.18 g of radon gas is...

A) Radon gas has a half-life of 3.83 days. If 3.18 g of radon gas is present at time t = 0, what mass of radon will remain after 2.10 days have passed?
____ g

B) A drug tagged with 9943Tc (half-life = 6.05 h) is prepared for a patient. If the original activity of the sample was 1.2  104 Bq, what is its activity (R) after it has been on the shelf for 1.2 h?
_____Bq

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Answer #1
  1. The above problem is related to decay of material after some time.
  2. All the necessary steps are clearly mentioned and easy to understand.
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