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Questions tagged 'Radioactive Decay'

5 questions

A
Anonymous

Jan 17, 2025

The half life of a certain radioactive material is 36 days.

The half-life of a certain radioactive material is 36 days. An initial amount of this material has a mass of 487 kg. Please write an exponential function that models the decay of this material. Additi...

A
Anonymous

Dec 26, 2024

The half-life of bromine-74 is 25 min. How much of a 4.0mg sample is still active after 75 min?

What is the remaining mass of a 4.0 mg sample of bromine-74 after 75 minutes, given that its half-life is 25 minutes? a) 0.50 mg b) 1.0 mg c) 2.0 mg d) 0.25 mg e) 4.0 mg

Identify the nuclide produced when fluorine-18 decays by positron emission: 18 9F→01e+?

What nuclide is produced when fluorine-18 (¹⁸₉F) decays through positron emission (¹⁸₉F → ¹⁰₈O + ¹₁e⁺)?