1. Dot Notation

2. Dot Notation At the conclusion of our time together, you should be able to: 1. Explain what dot notation represents 2. Do a dot notation for every element on the periodic table

3. Remember: The Third Quantum Number - m Values are – l to 0 to + l We know what the shape looks like from the second Quantum Number, now we know how many orientations of these shapes each sublevel has!!

4. The Third Quantum Number - m Values are – l to 0 to + l, therefore: s = ___ 0 Or just 1 orientation These electrons are represented by dots on the right side of the element’s symbol.

5. The Third Quantum Number - m Values are – l to 0 to + l, therefore: p = ___ ___ ___ -1 0 +1 Or 3 orientations These electrons are represented by dots on the top, left and bottom side of the element’s symbol.

6. The Third Quantum Number - m Values are – l to 0 to + l, therefore: d = ___ ___ ___ ___ ___ -2 -10 1 2 or 5 orientations These electrons are never represented by dots. Why? You’ll see shortly.

7. The Third Quantum Number - m Values are – l to 0 to + l, therefore: f = ___ ___ ___ ___ ___ ___ ___ -3 -2 -1 0 1 2 3 or 7 orientations These electrons are never represented by dots. Why? You’ll see shortly.

8. True Confessions

9. Dot Notation Summary 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. The right side represents the s sublevel with its one orientation. 5. The top, left and bottom represents the p sublevel with its 3 orientations. 6. The d and f sublevels are not represented.

10. Let’s Try Helium 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. 1s 2 He

11. Let’s Try Helium 1. The right side represents the s sublevel with its one orientation. 2. The top, left and bottom represents the p sublevel with its 3 orientations. 3. The d and f sublevels are not represented. He

12. A salute to the King!! Uranium - U

13. Let’s Try Lithium 1s 2 2s 1 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side Li

14. Now Beryllium 1s 2 2s 2 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side Be

15. What About Boron: 1s 2 2s 2 2p 1 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side 5. The first p orientation is represented on the top B B

16. What About Carbon: 1s 2 2s 2 2p 2 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side 5. The first p orientation is represented on the top, second on the left C C

17. The Electrons of the 2 nd Energy Level for Carbon 1s 2 2s 2 2p 2 s = ___p = ___ ___ ___ 0 -1 0 +1 C C

18. The Electrons of the 2 nd Energy Level for Nitrogen 1s 2 2s 2 2p 3 s = ___p = ___ ___ ___ 0 -1 0 +1 N N

19. WHY GOD MADE MOMS Answers given by 2nd grade school children to the following questions: What would it take to make your mom perfect? 1. On the inside she's already perfect. Outside, I think some kind of plastic surgery. 2. Diet. You know, her hair. I'd diet, maybe blue.

20. The Electrons of the 2 nd Energy Level for Oxygen 1s 2 2s 2 2p 4 s = ___p = ___ ___ ___ 0 -1 0 +1 O O

21. The Electrons of the 2 nd Energy Level for Fluorine 1s 2 2s 2 2p 5 s = ___p = ___ ___ ___ 0 -1 0 +1 F F

22. The Electrons of the 2 nd Energy Level for Neon 1s 2 2s 2 2p 6 s = ___p = ___ ___ ___ 0 -1 0 +1 Ne

23. Let’s Move to Sodium 1s 2 2s 2 2p 6 3s 1 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side Na

24. How can you tell if a redneck is married? There's tobacco spit on both sides of his pickup truck. Redneck News:

25. Do You See a Pattern??? 1. Magnesium’s dot notation would be what? 2. 2 dots right 3. Aluminum? 4. 2 dots right, 1 top 5. Silicon? 6. 2 dots right, 1 top, 1 left 7. Phosphorous? 8. 2 dots right, 1 top, 1 left, 1 bottom 9. Sulfur? 10. 2 dots right, 2 top, 1 left, 1 bottom

26. Do You See a Pattern??? 1. Chlorine? 2. 2 dots right, 2 top, 2 left, 1 bottom 3. Neon? 4. 2 dots right, 2 top, 2 left, 2 bottom 5. Back to Potassium? 6. 1 dot right 7. Calcium? 8. 2 dots right 9. But now we come to Scandium?????

27. Scandium?? 1s 2 2s 2 2p6 3s2 3p6 4s2 3d1 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side Sc

28. Titanium?? 1s 2 2s 2 2p6 3s2 3p6 4s2 3d2 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side Ti

29. Vanadium?? 1s 2 2s 2 2p6 3s2 3p6 4s2 3d3 1. Write the symbol of the element 2. The symbol represents all the protons, neutrons and inner energy level electrons. 3. Use dots to represent the outer most energy level electrons. 4. S is represented on the right side V V

30. Do You See Another Pattern??? 1. Chromium? 2. 2 dots right 3. Manganese? 4. 2 dots right 5. Zinc? 6. 2 dots right 7. Gallium? 8. 2 dots right, 1 top 9. And back to the p block pattern

31. What About the “F” Block Elements Now we come to a confusing part of the periodic table. Note that element #57, Lanthanum, is in the “d” block but the next element #58, Cerium, drops down to the “f” block.

32. Lanthanum would be? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 2 dots right Then Cerium would be? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 1 2 dots right!!

34. The Rest of the 4f Block #58 Praseodymium to #71 Lutetium?? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 1-14 2 dots right!!

35. Dot Notation Let’s see if you can: 1. Explain what dot notation represents 2. Do a dot notation for every element on the periodic table

36. Your Turn Let’s see if you can do the dot notation for #112, Copernicium 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 14 5d 10 6p 1-6 7s 2 6d 1 5f 14 6d 10 2 dots right

37. Your Turn 1. The s sublevel with its one orientation is where? 2. 1-2 dots right 3. The first orientation of the p sublevel is where? 4. 1-2 dots top 5. The second orientation of the p sublevel is where? 6. 1-2 dots left 7. The third orientation of the p sublevel is where? 8. 1-2 dots bottom 9. The d and f sublevels are where? 10. No where!!! Why????

38. H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar 1 2 3 4 5 6 7 8 H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar 1 2 3 4 5 6 7 8 The number of electrons in the outside shell.

39. Life Explained. On the sixth day, God created the dog. God said, “Sit all day by the door of your house and bark at anyone who comes in or walks past. I will give you a life span of twenty years.” The dog said, "That's too long to be barking. Give me ten years and I'll give you back the other ten." So God agreed.

40. Life Explained. Also on the sixth day God created the monkey. God said, “Entertain people, do monkey tricks, make them laugh. I'll give you a twenty-year life span.” The monkey said, "How boring, monkey tricks for twenty years? I don't think so. Dog gave you back ten, so that's what I'll do too, okay?" And God agreed.

41. Life Explained. Later on the sixth day God created the cow. God said, “You must go to the field with the farmer all day long and suffer under the sun, have calves and give milk to support the farmer. I will give you a life span of sixty years.“ The cow said, “That's kind of a tough life you want me to live for sixty years. Let me have twenty and I'll give back the other forty.” And God agreed again.

42. Life Explained. Finally, on the sixth day God created man. God said, “Eat, sleep, play, marry and enjoy your life. I'll give you twenty years. Man said, “What? Only twenty years! Tell you what, I'll take my twenty, and the forty the cow gave back and the ten the monkey gave back and the ten the dog gave back, that makes eighty, okay?“ “Okay,” said God, “You've got a deal.”

43. Life Explained. So that is why the first twenty years we eat, sleep, play, and enjoy ourselves; for the next forty years we slave in the sun to support our family; for the next ten years we do monkey tricks to entertain the grandchildren; and for the last ten years we sit on the front porch and bark at everyone. Life has now been explained to you!!!