2 points
(d) The figure below shows how the activity of a sample of potassium -40
changes ove...
2 points
(d) The figure below shows how the activity of a sample of potassium -40
changes over time. Use the figure above to determine the half-life of
potassium-40. Half-life =
billion years
1200
1000
800
Mass of
sample 600
in mg
400
200
0
0.0 1.0
2.0 3.0 4.0 5.0 6.0 7.0 8.0
Time in billions of years
Your answer
Answers: 1
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