Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for...

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Nuclear Decay Revisited

Transcript of Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for...

Page 1: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Nuclear Decay Revisited

Page 2: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day numbers 0 to 30.

Page 3: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Enter 1000 1’s (shown in Col B below) and Sum them at the top of the column under the Day numbers.

Page 4: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Use IF and RAND() to simulate decay (a change from 1 to 0).

Page 5: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Copy the formula down. (Get the “thin cross” and double click.)

Page 6: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Copy the sum formula over. You should see about 8.3% of the “atoms” decayed.

Page 7: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Copy the formula for the simulated atoms and the sum over for the 30 days.

Page 8: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Highlight the Day and Sum rows and make an XY Scatter graph.

Page 9: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Fit to an Exponential, label axes, title, etc.

Page 10: Nuclear Decay Revisited. Enter the probability to decay in a time unit – approximately 0.083 for Iodine 131 to decay in one day. Also make a row of day.

Interpolation

• According to your fit formula, what percentage of atoms are left (un-decayed) after 8 days?

• 16 days? • 24 days?


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Unit 10 Day 2 - Growth and Decay - Weeblymrjensonirondale.weebly.com/uploads/7/3/6/9/73699153/... · 2019. 10. 13. · Unit 10 Day 2 Growth and Decay welcome 1. Take out notebook,

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