Molecular models 20200812

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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.

3. Lets do some chemistry.

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

5. Balls represent atoms.

6. Color indicates species of atom.

7. White is hydrogen H

8. Black is carbon C

9. Red is oxygen O

10. Blue is nitrogen N

11. Orange is chlorine Cl

12. Green is bromine Br

13. Purple is iodine I

14. Yellow is sulfur S

15. Grey is phosphorus P

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

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

18. Sticks represent bonds.

19. Spring, long stick, short stick

20. Lets look at some small molecules

21. Single bond H2

22. Single bond Br2

23. Double bond O2

24. Triple bond N2

25. Single bonds CH4

26. Single bonds CH3Br

27. Single bonds CH3OH

28. Single bond CH3 - CH3

29. Double bond CH2 = CH2

30. Triple bond CH - - - CH

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

32. The End

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