Half-Life practice2 What is half-life?0CALAFUER% of original mass remaining10090807060504030201051Counts per minute0 1 2 3 4 5 6 7 8 9 10Number of half-lives807060The graph below shows the breakdown of radon-222.5040302010Create a graph that represents how aradioactive element will decay.00The half-life of Po-214 is 0.001 seconds. Howmuch of a 10-gram sample is left after 0.003seconds?1 235Time (Days)467 8 9 10Gold-198 has a half life of 2.7 days. Complete thetable for an initial sample size of 200 grams.TIME ELAPSED70 days2.7 daysAMOUNTREMAINING200 gramsHow much of a 500g sample of potassium-42 is left after37.2 hours if the half-life of potassium-42 is 12.4 hours.What is the half-life of Rn-222?What fraction of the original sample will be left after 3 half-lives?_How much of a 100 gram sample of gold-198 is left after8.10 days if its half life is 2.7 days?The Irendy Science Jeacher 2020

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Half-Life practice Create a graph that represents how a radioactive element will decay. What is half-life? ass remaining 100 90 80 70 60 2

College Physics

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ISBN:9781305952300

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Chapter1: Units, Trigonometry. And Vectors

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Question

Half-Life practice
2 What is half-life?
0
CALAFUER
% of original mass remaining
100
90
80
70
60
50
40
30
20
10
51
Counts per minute
0 1 2 3 4 5 6 7 8 9 10
Number of half-lives
80
70
60
The graph below shows the breakdown of radon-222.
50
40
30
20
10
Create a graph that represents how a
radioactive element will decay.
0
0
The half-life of Po-214 is 0.001 seconds. How
much of a 10-gram sample is left after 0.003
seconds?
1 2
3
5
Time (Days)
4
6
7 8 9 10
Gold-198 has a half life of 2.7 days. Complete the
table for an initial sample size of 200 grams.
TIME ELAPSED
7
0 days
2.7 days
AMOUNT
REMAINING
200 grams
How much of a 500g sample of potassium-42 is left after
37.2 hours if the half-life of potassium-42 is 12.4 hours.
What is the half-life of Rn-222?
What fraction of the original sample will be left after 3 half-lives?_
How much of a 100 gram sample of gold-198 is left after
8.10 days if its half life is 2.7 days?
The Irendy Science Jeacher 2020

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