Carbon dating exponential process
In this experiment, you will consider a similar case, that of radioactive decay. If the material is radioactive, that means that some of its atoms are continually dying, or, more accurately, they are being transformed into some other type of atom.The probability that any given atom in the material will decay is the same as for all atoms and this probability does not change with time, i.e.It's best if you actually do this experiment "live" (tossing pennies is fun! However, if you don't have 100 pennies handy, you can use this coin decayer application . Once you have completed the data-taking, look at your columns of pennies. To get an even more detailed look at the shape, you might think about how to combine the data for your group with the data from other groups.If you didn't use the coin decayer application, you should draw a graph that represents the number of pennies in each column vs. Repeat the entire experimental procedure again and draw a new graph for the height of the pennies. Now try finding which function best approximates the shape you see.You'll see later how to make use of the specific number of pennies you started with. We can now extrapolate our observations by asking what would happen if we used dice instead of pennies, where a die is said to "decay" if it lands, say, with one dot showing up?In this case, we assume a fair die so that the probability of any particular number showing up is about 1/6 for each toss of a die.
The lab procedure to mimic radioactive decay is simple. Toss the pennies onto a table surface or the floor.
Repeat the process until all pennies have landed tails up.
If no pennies are tails up on a particular toss, leave the column corresponding to that toss empty.
After it dies, however, it no longer takes in either form of carbon.
The ratio of radiocarbon to nonradioactive carbon then decreases with time as the radiocarbon decays away.