here is the answer ,, you can make a decay curve like this example..
A decay curve illustrates the decrease in quantity of a radioactive substance over time, typically showing a steep initial decline that flattens out as time progresses. It is characterized by labeling the x-axis as 'Time' and the y-axis as 'Amount of Radioactive Substance.' The curve represents half-life intervals where the substance reduces to half of its original amount at constant time intervals.
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