1. Chapter 16 Nuclear Energy
Warm-up:
Describe the typical atom (its parts, how it works, etc.)
Chapter Nuclear Energy

2. Vocabulary: Nuclear / Atomic Energy
Radiation  “radiate” = give off; emit
Radioactive Decay
Alpha Particle = He (Helium) nucleus = 2p/2n (atomic mass # of 4 … no e- so charge = 2+)
Beta Particle = electron (e-) or positron (e+)
Gamma Ray = light energy … no mass, no charge

3. Complete the concept map using radiation definitions:
Nuclear Radiation
… is released during …
… can be in the form of a/an …

4. Nuclear Radiation … is released during …
… can be in the form of a/an …
Alpha particle
Radioactive Decay
Beta particle
Gamma ray

5. Half-Life: the time needed for half of a radioactive substance to decay

6. 2 TYPES OF NUCLEAR ENERGY (ENERGY FROM THE NUCLEUS)
FISSION
Nucleus of large atom splits into 2 or more fragments, releasing addt’l neutrons & energy
Creates a CHAIN REACTION (continuous series of fission rxn’s)
“uncontrolled”  nuclear bombs, etc.
“controlled” nuclear power plants
 Less pollution than other power plants
 Danger from accidents & waste disposal
FUSION
2 or more Nuclei of small atoms join to create a larger nucleus, releasing energy
Our SUN uses Fusion
 Safer & more efficient than Fission … fuel source (Hydrogen) is abundant
 Technology not yet available for Fusion

8. Team Exit Tkt Ch.16: TEXTBOOK
43 pts
p : 1 & 2(2e) … 63 … 92
p : 1 & 2(1e) … 3 thru 7(2e)
p : 1 thru 10(2e)

9. TODAY
Finish the Team Worksheet  be sure you know the info (“no slugs”). When the team is finished, study for an Individual Exit Ticket that covers the basics about atoms.