Chemistry and Physics

1. Chemistry and Physics OGT Blitz

2. Warm-up Brain Conflict

5. Right side - identifies the color • Left side - identifies the word • This conflictin information processing must be sorted – so the process becomes slower

6. Atoms • Atoms make up all of the elements • They contain sub-atomic particles theproton + theelectron _ theneutron

7. The Periodic Table

9. The Metals

11. Mercury Hg Iron Fe

12. Metals are shiny • Good electrical conductors • Ductile (can be pulled into a wire) • Malleable (able to be hammered) • They are the largest group of elements

13. The Non - Metals

15. Carbon C Sulfur S

16. Non-metals are dull in appearance • They are poor electrical conductors • They are brittle and break if hammered

17. The Metalloids

19. Silicon Si Germanium Ge

20. They have properties of both a metal & non-metal • Used in the computer industry because of these unique capabilities

21. Electron Orbitals

23. The Valence Electrons A Better Look

24. Valence means “strength” • The valence shell is the outermost shell • This shell holds the reactive electrons • These are the guys that get involved in chemical reactions • These outer electrons are called the valence electrons

25. 1 4 7 How many valence electrons ?

27. Lewis Dot Diagrams

28. Lewis dots are used to represent valence electrons • They are placed in groups of 1 or 2 electrons on the appropriate four sides of an element 8 electrons means a full valence shell

29. Lithium has 3 electrons but only 1 is a valence electron – as shown

30. Beryllium has 4 electrons but only 2 are valence electrons

36. OGT Element Questions

42. OGT Properties Questions

47. Reactions

48. Five types: 1. Synthesis 2. Decomposition 3. Single Replacement 4. Double Replacement 5. Combustion

49. Synthesis Tw0 or more substances that combine and synthesize a new compound H2+ O2H2O2 C + 2 H2CH4

50. Decompositon– opposite of synthesis Compound is decomposedinto two or more simpler substances 2 H2O 2H2 + O2 2 Ag2O  4 Ag + O2