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Q 20 Exercise

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1236

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Short Answer

A sample of 1.0x1010atoms that decay by alpha emission

has a half-life of 100 min. How many alpha particles are emitted

between t = 50 min and t = 200 min?

Therefore are emitted between t=50 min and t = 200 min.

See the step by step solution

Step by Step Solution

Step 1: Given information

Step 2: Explanation

To begin, we must determine the number of radioactive atoms at time t = 50 minutes:

We determine the number of radioactive atoms at time t = 200 minutes:

Step 3: Explanation

We determine the number of radioactive atoms between time t = 50 minutes and 200 minutes:

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