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Descriptive Inorganic Chemistry Chem 241 12-1 M, W, F Bill Vining 232 Physical Sciences Building 436-2698

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Presentation on theme: "Descriptive Inorganic Chemistry Chem 241 12-1 M, W, F Bill Vining 232 Physical Sciences Building 436-2698"— Presentation transcript:

1 Descriptive Inorganic Chemistry Chem 241 12-1 M, W, F Bill Vining 232 Physical Sciences Building 436-2698 viningwj@oneonta.edu

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

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

4 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.

5 Chem 241 Topics Origin of the Elements Nuclear Chemistry – Stability – Practical Nuclear Chemistry Chemical Formation of the Earth and Ore Obtaining the Elements: Extraction – Methods for Metals and Nonmetals Properties of the Main Group Elements – The elements themselves – Oxides, halides of the elements Bonding and Properties of Metals

6 Chem 241 Topics Chemistry in Water – Charge Density – Enthalpy, Entropy and Solubility – Acid-Base Properties Atmospheric Chemistry – Global Warming – Acid Rain – Ozone Coordination Chemistry – Complex Types – Bonding – Symmetry in Chemistry – Spectroscopy

7 Official Stuff Course Website: http://employees.oneonta.edu/viningwj/chem241/http://employees.oneonta.edu/viningwj/chem241/ Text: Online pdf http://employees.oneonta.edu/viningwj/chem241/text/ Grading: Three exams300 points Homework/In-Class Quizes100 points Poster Session50 points Homework: OWL Starting Next Week http://owl.oit.umass.edu Choose Chemistry General, UMass Amherst, then choose SUNY Oneonta, Chem 241 Login: SUCO + your email up to the @ sign (mine would be SUCOviningwj) Password: your A00 number

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9 First Topic Where do all these elements come from? How are they made? Are they made?

10 Our Guide:

11 What aspects of this should we explain?

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

13 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

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

22 Helium Burning 4 He + 4 He  8 Be 8 Be + 4 He  12 C*  12 C +  3 4 He  12 C +  Is this easier or harder than hydrogen burning?

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

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

25 Neutron Capture-Beta Decay

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27 r- vs. s-neutron capture

28 What nuclei exist?


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