1. P570, #14 alpha decay
24096Cm = 23694Pu + 42He
25299Es = 24897Bk + 42He
261107Bh = Db + 42He

2. 4419K = 4420Ca + 0-1e 5926Fe = 5927Co + 0-1e 14156Ba = 14157La + 0-1e
P570, #16 beta decay
4419K = 4420Ca + 0-1e
5926Fe = 5927Co e
14156Ba = 14157La + 0-1e

3. P578, #30 HALF LIFE T1/2 (n) = Tt
32.5 (n) = n= 1
110 (n) = n = 3
2.7 (n) = n = 2

4. P578, #32 HALF LIFE T1/2 (n) = Tt
Sodiium-24 has a half-life of 15 h. A sample starts with 12 mCi.
What is left after one half-life 12/2 = 6 mCi
After 30 hrs. 12/2/2 = 3 mCi
After 2.5 days x24 hrs = 60 hrs /15 = n =4
12/2/2/2/2 = 0.75 mCi

5. P578, #34 HALF LIFE T1/2 (n) = Tt
Flourine -18 has a half-life of 110 min. A sample starts with 100 mg.
What is left after one half-life 100/2 = 50 mg
After 5.5 hrs x60 min = 330mins /110 = n =3
100/2/2/2/ = 12.5 mg

6. P584, #40 Nuclear chain reaction
A neutron hits a uranium that splits and emits 3 more neutrons that hit other uraniums: when the density of uranium is at critical mass they all split at the same time

7. #42 Nuclear Fission
23592U + 10n g
94Sr + __+3 10n
13954Xe

8. #44/ # 70 Fission vs fusion X X Fission Fusion
High temperatures to start X
No radioactive waste
Hydrogen fuel
Large amounts of energy released
Chain reaction X
Control rods

9. 13755Ce g 13756Ba + 0-1e P589, #66 Nuclear Reactions 90 / 30 = 3
12955Cs half life = 30 yrs
Total time = 90 yrs
16 mg= original
90 / 30 = 3
16 g 8 g 4 g 2 mg