Half Life Virtual Lab 8.03 & 8.04
Go to the following website after you have downloaded the lab report:
Please submit to the dropbox 8.04
- Purpose: To investigate the meaning of radioactive half0life as you see a simulation of the radioactive decay of isotopes of four hypothetical elements. To collect radioactive decay rate data over a period of 20,000 years. To determine, compare and contrast half-lives of the 4 radioactive elements.
- Click the Video button and watch the video to review about atoms.
- Select Element at from the pull-down menu. At first you will see a total of 100 radioactive atoms on the screen.
- Click the Years passed button to advance the time 1000 years.
- Click the Count the Remaining Radioactive Atoms button to see how many radioactive atoms remain.
- Click the Remove the Atoms No Longer Radioactive button to remove the daughter elements
- Record the number of remaining radioactive element in the data table.
- Continue to advance the time by 1000 year intervals until Half of the original atoms remain.(You may be a little below 50 atoms)
- Repeat these steps for the 3 remaining elements. Record results in data chart.
- Data Chart
- Analysis Questions
- According to your data, what are the approximate half-lives of the 4 elements? A___________ B____________ C__________D___________
- Which of the 4 substances you investigated would be the most harmful to living organisms?
- What part of an original isotopes’ number of atoms remains after 2 half-lives?
- How much of a 100.0g sample of Au-198 is left after 8.10 days if its half-life is 2.70 days?