Descriptive Inorganic Chemistry Chem M, W, F Bill Vining 232 Physical Sciences Building

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

Inorganic Chemistry: Chemistry for the rest of the elements.

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.

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

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

Official Stuff Course Website: Text: Online pdf Grading: Three exams300 points Homework/In-Class Quizes100 points Poster Session50 points Homework: OWL Starting Next Week Choose Chemistry General, UMass Amherst, then choose SUNY Oneonta, Chem 241 Login: SUCO + your up to sign (mine would be SUCOviningwj) Password: your A00 number

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

Our Guide:

What aspects of this should we explain?

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

General Decrease in Abundance with Atomic Number

Even > Odd

Peak at Fe

Peak at Pb

Trough at Be

Missing Tc and Pm and Above N = 83

Nuclear equations

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

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?

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?

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 + 

Neutron Capture-Beta Decay

r- vs. s-neutron capture

What nuclei exist?