The document discusses ball and stick models used to represent molecules. It explains that balls represent different atoms, which are color coded according to common schemes. Sticks represent the bonds between atoms. Examples of simple molecules are given using this ball and stick model approach, including single, double, and triple bonded molecules containing hydrogen, carbon, oxygen, nitrogen, chlorine and other atoms. The purpose is to identify color coding and bonds in these basic molecular representations.

1. Molecular Models 00
Ball and Stick Models
20200812
Stephen Joseph Boylan
August 2020

2. Simplest Formula Series in Chemistry
Stephen Joseph Boylan
August 10, 2020
Learning Objective: Identify color coding and bonds for ball and stick models of molecules.

4. Lets do some chemistry.

5. Models of molecules can be made
from balls and sticks.

6. Balls represent atoms.

7. Color indicates species of atom.

9. White is hydrogen H

10. Black is carbon C

11. Red is oxygen O

12. Blue is nitrogen N

14. Orange is chlorine
Cl

15. Green is bromine
Br

16. Purple is iodine I

18. Yellow is sulfur S

19. Grey is phosphorus
P

20. These colors are suggestions.
Colors may be assigned to different
atoms as needed.

21. Refer to the CPK scheme for more
collor assignments.
CPK refers to Corey Pauling
Koltun.

22. Sticks represent bonds.

24. Spring, long stick, short stick

25. Lets look at
some small molecules

27. Single bond H2

29. Single bond Br2

31. Double bond O2

33. Triple bond N2

35. Single bonds CH4

37. Single
bonds
CH3Br

39. Single bonds CH3OH

41. Single bond
CH3 - CH3

43. Double bond
CH2 = CH2

45. Triple bond
CH - - - CH

46. What we have learned.
Models of molcules
can be made
from balls and sticks.

49. The End

50. The End
Thank you for taking the time to watch.
Stephen Joseph Boylan
August 2020