1. Chemistry, Water and pH

2. Atom Structure Matter Mass Space Made up of atoms Protons Neutrons Electrons

3. Definitions Element – a substance that cannot be reduced to a simpler substance Molecule – two are more atoms together Compound – two are more elements together

4. Periodic Table

5. Atom Structure Atomic number Mass number Atomic weight

6. Isotopes Same element with different numbers of Neutrons

7. Isotopes Radiometric Dating Tracers

9. Chernobyl April 26 19861986 extensive parts of the western Soviet Union, Eastern Europe, Western Europe, Northern Europe, and eastern North AmericaSoviet Union Eastern EuropeWestern EuropeNorthern Europe North America Nearly thirty to forty times more fallout was released than had been by the atomic bombings of Hiroshima and Nagasakiatomic bombings of Hiroshima and Nagasaki Direct Deaths: 56

10. Three Mile Island March 28 1979 partial core meltdown in Unit 2 of the nuclear power plantmeltdown release of a significant amount of radioactivity, an estimated 43,000 curies of radioactive krypton (1.59 PBq), but under 20 curies (740 GBq) of the particularly hazardous iodine-131, to the environment.curies PBqcuriesGBqiodine-131 no deaths or injuries

11. Hershey

12. Fukushima Daiichi March 11 2011 No immediate deaths due to radiation A few of the plant's workers were severely injured or killed by the disaster conditions at least six workers have exceeded lifetime legal limits for radiation and more than 300 have received significant radiation doses. Predicted future cancer deaths due to accumulated radiation exposures in the population living near Fukushima have ranged from none to 100.

13. Microwaves

14. Energy Levels

15. Electron Shells

16. “Happy Atoms”

17. Bonding Covalent Bonding Nonpolar Polar Ionic Bonding Hydrogen Bonding Van der Waals Interactions Hydrophobic Interactions

18. Nonpolar Covalent Bonds

19. Polar Covalent Bonds

20. What is an Ion? Cation A positive charged ion Anion A negatively charged ion

21. Ionic Bonds

22. Hydrogen Bonds

23. Van der Waals The weak bonds that exist between molecules but are masked by other stronger bonds. They are evident only in symmetrical molecules or at very low temperatures.

24. Hydrophobic Interactions Hydrophobic Hydrophilic

25. Water

26. Water Structure Polar Covalent Bonds Hydrogen Bonds

27. Water Properties Adhesion Cohesion Surface Tension

28. Water Properties Surface Tension – Basilisk (Jesus) Lizard

29. Water Properties High Specific Heat

30. Water Properties High Specific Heat

31. Water Properties High Heat of Vaporization

32. Water Properties Expands when freezing

33. Water Properties Universal Solvent

34. Solutions Solute + Solvent = Solution

35. pH Scale Acid – donates H+ Base – accepts H+

36. Richter Scale

37. Acid Precipitation

40. Buffers