1. The Molecular Model Lab
MML
The Molecular Model Lab

2. INFORMATION The following information will be on the board
the number of the model
the model
the name of the molecule
the location of the atoms

3. INFORMATION The following information will be on the board
the number of the model
the model PPBPP
the name of the molecule
the location of the atoms

4. INFORMATION The following information will be on the board
the number of the model
the model PPBPP
P = Purple
B = Black
the name of the molecule
the location of the atoms

5. INFORMATION The following information will be on the board
the number of the model
the model PPBPP
P = Purple
B = Black
Bl = Blue
the name of the molecule
the location of the atoms

6. INFORMATION The following information will be on the board
the number of the model
the model PPBPP
P = Purple
B = Black
Bl = Blue
the name of the molecule Carbon Tetrafluoride
the location of the atoms

7. INFORMATION The following information will be on the board
the number of the model
the model PPBPP
P = Purple
B = Black
Bl = Blue
the name of the molecule Carbon Tetrafluoride
the location of the atoms P = 2 – 7A
B = 2 – 4A

8. INFORMATION
1. Carbon Tetrafluoride PPBPP P = 2 – 7A B = 2 – 4A

9. STEP 1
Identify the Atoms in the molecule using the Periodic Table

10. STEP 1
Identify the Atoms in the molecule using the Periodic Table

11. STEP 1
Identify the Atoms
in the molecule using the Periodic Table

12. STEP 1
Identify the Atoms
in the molecule
using the Periodic Table

13. STEP 1 Identify the Atoms PPBPP Carbon Tetrafluoride P = 2 – 7A
B = 2 – 4A

14. STEP 1
Identify the Atoms
Carbon Tetrafluoride
P = 2 – 7A
B = 2 – 4A

15. STEP 1
Identify the Atoms
P = 2 – 7A
B = 2 – 4A

16. Period Number – Family Number
STEP 1
Identify the Atoms
P = 2 – 7A
B = 2 – 4A
Period Number – Family Number

17. STEP 1
Identify the Atoms
P = 2 – 7A = Fluorine

18. STEP 1
Identify the Atoms
B = 2 – 4A = Carbon

19. STEP 1
Identify the Atoms
P = Fluorine
B = Carbon

20. STEP 2
Identify the atomic symbol of each atom
P = Fluorine
B = Carbon

21. STEP 2 Identify the atomic symbol of each atom P = 2 – 7A = Fluorine
B = 2 – 4A = Carbon

22. STEP 2 Identify the atomic symbol of each atom
P = 2 – 7A = Fluorine = F
B = 2 – 4A = Carbon = C

23. Step 2
Fluorine = F
Carbon = C

24. STEP 3
Build the Model

25. STEP 3
Build the Model
It only fits one way

26. STEP 3 Build the Model It only fits one way
It must be complete, everything must be filled, nothing can be empty.

27. STEP 3 Build the Model It only fits one way
It must be complete, everything must be filled, nothing can be empty.
There are NO RINGS in this lab.

28. STEP 3 Build the Model It only fits one way
It must be complete, everything must be filled, nothing can be empty.
There are NO RINGS in this lab.

29. STEP 3 Build the Model It only fits one way
It must be complete, everything must be filled, nothing can be empty.
There are NO RINGS in this lab.

30. STEP 3

31. STEP 3 Build the Model It only fits one way
It must be complete, everything must be filled, nothing can be empty.
ONLY USE THE LONGER CONNECTORS WHEN YOU HAVE TO! When you can’t build the molecule without them.

32. STEP 3 ONLY USE THE LONGER CONNECTORS WHEN YOU HAVE TO!
When you can’t build the molecule without them.

33. STEP 4
Draw the molecule.
Identify each atom with its atomic symbol

34. THE SHAPE IS VERY IMPORTANT!!!!
STEP 4
Draw the molecule.
Identify each atom with its atomic symbol
NEATNESS COUNTS!
THE SHAPE IS VERY IMPORTANT!!!!

35. STEP 4
Draw the molecule.
Identify each atom with its atomic symbol

36. STEP 4 P = Purple = 2 – 7A = Fluorine = F
B = Black = 2 – 4A = Carbon = C

37. STEP 4
P = Purple = Fluorine = F
B = Black = Carbon = C

38. STEP 4
Purple = F
Black = C

39. STEP 5 Write the chemical formula of the molecule.
There is an order to the chemical formula…..

40. STEP 5
There is an order to the chemical formula…..
Carbon goes first

41. STEP 5 There is an order to the chemical formula….. Carbon goes first
Hydrogen goes second

42. STEP 5 There is an order to the chemical formula….. Carbon goes first
Hydrogen goes second
Oxygen goes third

43. Remember N doesn’t follow the rules of order,
STEP 5
There is an order to the chemical formula…..
Carbon goes first
Hydrogen goes second
Oxygen goes third
then Everything Else!
Remember N doesn’t follow the rules of order,
It goes before C and H!

44. Remember N doesn’t follow the rules of order,
STEP 5
There is an order to the chemical formula…..
Carbon goes first
Hydrogen goes second
Oxygen goes third
then Everything Else!
Remember N doesn’t follow the rules of order,
It goes before C and H!

45. STEP 5 There is an order to the chemical formula…..
Carbon…Hydrogen…Oxygen…Everything Else!
Remember N doesn’t follow the rules of order, It goes before C and H!
You must count each type of atom and write its subscript number.

46. STEP 5
You must count each type of atom and write its subscript number.

47. STEP 5 !
You must count each type of atom and write its subscript number.
SIMPLE RULE…never write 1 as a subscript number

48. CF4 STEP 5 SIMPLE RULE…never write 1 as a subscript number
One carbon and four fluorines…no oxygen or hydrogen
CF4

49. REVIEW PPBPP P = 2 – 7A = Fluorine Fluorine = F Information
Carbon Tetrafluoride
P = 2 – 7A
B = 2 – 4A
STEP 1 - Build the Model
STEP 2 - Identify the Atoms
P = 2 – 7A = Fluorine
B = 2 – 4A = Carbon
STEP 3 - Atomic Symbol
Fluorine = F
Carbon = C
STEP 4 – Draw the Molecule
Correct Atomic Symbol
STEP 5 – Chemical Formula
CF4

50. STEP 6
Draw each atom in the molecule ONCE!

51. STEP 6
Draw each atom
in the molecule
ONCE!

52. STEP 6
Draw each atom
in the molecule
ONCE!

53. STEP 6
Draw each atom
in the molecule
ONCE!
Draw C and F
ONCE!!!!!!!!!

54. STEP 6
Draw each atom in the molecule ONCE!
Electrons!!!

55. STEP 6 Draw each atom in the molecule ONCE! Use the correct electron
Identify each atom with its atomic symbol

56. STEP 6 Draw each atom in the molecule ONCE! Use the correct electron.
Identify each atom with its atomic symbol.

57. STEP 7
DRAW the molecule WITH electrons.

58. STEP 7 DRAW the molecule WITH electrons.
Make sure every atom is HAPPY.

59. STEP 7 DRAW the molecule WITH electrons.
Make sure every atom is HAPPY.
Every atom needs 8 electrons in its LAST energy level…

60. STEP 7 DRAW the molecule WITH electrons.
Make sure every atom is HAPPY.
Every atom needs 8 electrons in its LAST energy level…
EXCEPT Hydrogen that needs 2

61. STEP 7 DRAW the molecule WITH electrons.
Make sure every atom is HAPPY.
Every atom needs 8 electrons in its LAST energy level…
EXCEPT Hydrogen that needs 2
8 and 2, magic numbers, happy atoms have a magic number of electrons in their last energy level.

62. STEP 7
DRAW the molecule WITH electrons.
Make sure every atom is HAPPY.
Every atom needs 8 electrons in its LAST energy level…
EXCEPT Hydrogen that needs 2
8 and 2, magic numbers, happy atoms have a magic number of electrons in their last energy level.
Every connector, small or big, represents a SHARED, PAIR of ELECTRONS!

63. STEP 7
Every connector, small or big, represents a SHARED, PAIR of ELECTRONS!
Atoms share electrons to be HAPPY

64. STEP 7
Every connector, small or big, represents a SHARED, PAIR of ELECTRONS!

65. STEP 7
Every connector, small or big, represents a SHARED, PAIR of ELECTRONS!
One electron from Carbon one from Fluorine

66. STEP 7
Every connector, small or big, represents a SHARED, PAIR of ELECTRONS!
One electron from Carbon one from Fluorine

67. STEP 7

68. STEP 7

69. STEP 7

70. STEP 7

71. STEP 7
COUNT

72. STEP 7

73. STEP 7
NO NEW ELECTRONS WERE ADDED

74. STEP 7
All atoms have 8 electrons in their last energy level