Question

1. Half life of l-131 is 8 days and it weighs 20 mg. After 4 half lives, the amount left undecayed will be:​

Answer 1

Answer:

Figure 10.3. 1: The half-life of iodine-131 is eight days. Half of a given sample of iodine-131 decays after each eight-day time period elapses. Half-lives have a very wide range, from billions of years to fractions of a second.

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10.3: Half-Life.

Nuclide Half-Life (t1/2) Decay Mode

Uranium-238 4.47×109 years α

Explanation:

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