Notes

Slide Show

Outline

1	Unit 1 – Atomic Structure
2	Modern Atomic Theory
3	Discovery of the Electron
4	Conclusions from the Study of the Electron
5	Thomson’s Atomic Model
6	Rutherford’s Gold Foil Experiment
7	Try it Yourself!
8	The Answers
9	Rutherford’s Findings
10	Atomic Particles
11	The Atomic Scale
12	About Quarks…
13	Atomic Number
14	Mass Number
15	Isotopes
16	Atomic Masses
17	The Mole
18	Avogadro’s Number
19	Calculations with Moles: Converting moles to grams
20	Calculations with Moles: Converting grams to moles
21	Calculations with Moles: Using Avogadro’s Number
22	Calculations with Moles: Using Avogadro’s Number
23	Nuclear Symbols
24	Types of Radioactive Decay alpha production (a): helium nucleus beta production (b):
25	Alpha Radiation
26	Beta Radiation
27	Types of Radioactive Decay gamma ray production (g): positron production : electron capture: (inner-orbital electron is captured by the nucleus)
28	Types of Radiation
29	Deflection of Decay Particles
30	Nuclear Stability
31	Half-life Concept
32	Sample Half-Lives
33	A Decay Series
34	Nuclear Fission and Fusion Fusion: Combining two light nuclei to form a heavier, more stable nucleus. Fission: Splitting a heavy nucleus into two nuclei with smaller mass numbers.
35	Energy and Mass Nuclear changes occur with small but measurable losses of mass. The lost mass is called the mass defect, and is converted to energy according to Einstein’s equation: DE = Dmc² Dm = mass defect DE = change in energy c = speed of light
36	Fission
37	Fission Processes
38	A Fission Reactor
39	Fusion