An unknown radioactive element decays into non-radioactive substances. In 340 days the radioactivity of a sample...

An unknown radioactive element decays into non-radioactive substances. In 340 days the radioactivity of a sample decreases by 37 percent. (a) What is the half-life of the element? (b) How long will it take for a sample of 100 mg to decay to 74 mg? time needed: (days)

Expert Solution

Colby Messinger answered 2 years ago

Consider the production series of radioactive sample A decays to sample B then decays to stable...

Consider the production series of radioactive sample A decays to sample B then decays to stable sample C. Na(0)=N0; Nb(0)=N0/4. lambda A and lambda B is equal to lambda. Derive the activity of sample B as a function of time (t), and the time at which Nb is maximum. Show all of the steps in your work and how you get the answers.

1. When a radioactive element decays, it is because the balance of neutrons and protons inside...

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(a) (i) A radioactive sample produces 1536 decays per second at one point in an experiment...

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A radiation safety officer is working with 112 grams of a radioactive substance. After 17 days, the sample has decayed to 80 grams. Rounding to..

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