1. Nuclear Chemistry

2. The student will: compare and contrast fission and fusion.
write the symbols for alpha, beta, positrons, gamma ray and neutrons in a balanced nuclear reaction.
discuss the penetrating ability of alpha, beta, positrons, gamma rays and neutrons .
apply and conclude a balanced nuclear reaction.
compute half life calculations to predict the amount of radioisotope present after a given period of time.

3. Hiroshima
Nagasaki

4. Nuclear Fission: splitting of the atom into different parts

5. Nuclear Fusion:nuclear particles combining releasing energy

6. How the bomb works
Critical mass

7. How a Nuclear Power Plant works

9. The student will: compare and contrast fission and fusion.
write the symbols for alpha, beta, positrons, gamma ray and neutrons in a balanced nuclear reaction.
discuss the penetrating ability of alpha, beta, positrons, gamma rays and neutrons .
apply and conclude a balanced nuclear reaction.
compute half life calculations to predict the amount of radioisotope present after a given period of time.

10. Nuclear Decay Particles
Comes out of the nucleus
Alpha:
Beta:
Positron:
Gamma Ray:
Neutron:
Worksheet: balancing nuclear equations

11. 63Li n 42He + _________
126C H N + ________
105B + alpha _________ N
24195Am Np + __________
21482Pb ____________ B
6430Zn + -B Cu + ________
94Be + a _________ + n
14261Pm + ______ Nd

12. 4219K 0-1e + ___________
23592U _________ Th
63Li + n -B + alpha + ___________
2713Al + alpha P + __________
94Be H ________ + 42He
23892U He ___________ n
21484Po He B ______________

13. The student will:
compute half life calculations to predict the amount of radioisotope present after a given period of time.

14. Half-Life Nuclear Decay
Students tear a piece of paper
1st half life = ½ ½
2nd half life = ¼ ¾
3rd half life = 1/8 7/8
4th half life = 1/16 15/16
Amount of sample gone
Amount of sample left

15. Ws.
1. The half-life of polonium-210 is days. How many milligrams of polonium-210 remain after days if you start with 2.0 mg of the isotope?
2. Assuming a half-life of 1599 years, how many years will be needed for the decay of 15/16 of a given amount or radium-226?

16. The half-life of radon-222 is 3. 824 days
The half-life of radon-222 is days. After what time will one-fourth of a given amount of radon remain?
A sample contains 4.0mg of uranium-238. After 4.46x109years, the sample will contain 2.0mg of uranium What is the half-life of uranium-238?

17. A sample contains 16mg of polonium-218
A sample contains 16mg of polonium After 12 minutes the sample will contain 1.0mg of polonium What is the half-life of polonium-210?
If you start with 2.97 x 1022 atoms of Molybdenum-91, how many atoms will remain after 62.0 minutes? The half-life of Mo-91 is minutes.

18. The half-life of Germanium-69 is 36 hours
The half-life of Germanium-69 is 36 hours. What part of a sample Germanium-69 will remain after 6 days.
The half-life of carbon-14 is 5,730 years. What fraction of a 1 gram sample of carbon-14 would remain after 17,129 years?

19. A sample of Cesium-125 contains 2
A sample of Cesium-125 contains 2.54 X 1018 atoms and it’s half life is 32.1 hours. How many of these atoms will remain after 96.3 hours?

20. If you had a sample of 55 grams of pure Uranium-238
If you had a sample of 55 grams of pure Uranium Which if you did they probably would come and put you in jail as a possible terrorist. But anyway… If you had this sample and you kept in your closet for the entire 4 years of high school. How much Uranium would you have left on graduation day. (U half life = 4.46x109 years)

21. The student will:
compute half life calculations to predict the amount of radioisotope present after a given period of time.