1. Descriptive Inorganic Chemistry Chem 241
12-1 M, W, F
Bill Vining
232 Physical Sciences Building

2. Inorganic Chemistry One of the three descriptive chemistries:
Biochemistry
Inorganic Chemistry
Theoretical and Practical Chemistries:
Physical Chemistry
Analytical Chemistry

3. Inorganic Chemistry: Chemistry for the rest of the elements.

4. Inorganic Chemistry Transition metal chemistry:
Metal-ligand complexes
Main group and metal-based materials science

5. Descriptive Inorganic Chemistry Chapter 2: Figure 2.2
© 2009 W.H. Freeman

6. First Assignment:
Find the best periodic
table website. Bring
URL and list of why you
think it is the best (and
any drawbacks).
Hand in paper at start
of class Friday.

7. Official Stuff
Course Website:
Text: Descriptive Inorganic Chemistry, 5th Ed., Rayner-Canham and Overton
Grading:
Three exams points
Homework/In-Class Quizes points
Project points
Homework: some OWL Starting Next Week + hand in

8. First Topic Where do all these elements come from? How are they made?

9. Descriptive Inorganic Chemistry Chapter 2: Figure 2.6
© 2009 W.H. Freeman

10. What aspects of this should we explain?

11. What will our explanations depend on?
Thermodynamics: relative stability
Kinetics: rate and mechanism

12. General Decrease in Abundance with Atomic Number

14. Even > Odd

15. Peak at Fe

16. Peak at Pb

17. Trough at Be

18. Missing Tc and Pm and Above N = 83

19. Nuclear equations

21. Nucleosynthesis of the Elements
Why does this happen
only in stars?
Hydrogen Burning
1H + 1H  2H + e+ + ve­
2H + 1H  3He + 
3He + 3He  4He +21H
41H  4He + 2e+ + 2ve

23. Helium Burning 4He +4He  8Be 8Be + 4He  12C*  12C + 
Is this easier or
harder than hydrogen
burning?

25. Carbon Burning, etc. 12C + 4He  16O +  16O + 4He  20Ne + 
20Ne + 4He  24Mg + 
12C + 12C  24Mg + 
12C + 12C  23Na + 1H
12C + 12C  20Ne + 4He
Go back to initial
Questions. Can we
answer any?

27. The -Process 20Ne +   16O + 4He 20Ne + 4He  24Mg + 
2 20Ne  16O + 24Mg + 
40Ca + 4He  44Ti* + 
44Ti* + e-  44Sc* + v+
44Sc*  44Ca + + + v+
44Ca + 4He  48Ti + 

28. Neutron Capture-Beta Decay