Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

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Due Monday Due Monday 3-28- 3-28- 10 10 Follow the Follow the guideline guideline Term paper Term paper

Transcript of Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Page 1: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

• Due Monday Due Monday 3-28-103-28-10• Follow the guidelineFollow the guideline

Term paper Term paper

Page 2: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Elemental classification Lewis acid/base Pearson’s hard/soft metals Ionic and covalent index Ionic potentials

Earth Scientist's Periodic Table of the Elements and Their Ions

Common minerals and aqueous species in soils

Familiar with equilibrium reactions Use log activity-pH graphs

Trace metals reviewTrace metals review

Page 3: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Ionic potential and solubility Ionic potential and solubility IP = ionic charge (Z)/ionic radius (r)

• Low IP high solubility

JCB lecture

Page 4: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Ionic potential and solubility Ionic potential and solubility IP = ionic charge (Z)/ionic radius (r)

• Low IP high solubility IP and metal solubility

• IP <2.5 (low): H-O > O-Me Remain in solution Ba, Li, Rb, & Sr

JCB lecture

O2-

H+

H+M+

Page 5: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Ionic potential and solubility Ionic potential and solubility IP = ionic charge (Z)/ionic radius (r)

• Low IP high solubility IP and metal solubility

• IP <2.5 (low): H-O > O-Me Remain in solution Ba, Li, Rb, & Sr

• 2.5 < IP < 9.5 (medium): H-O ~ O-Me Tend to precipitate Cu, Ni, Pb, U, Zn, Cr, & Co

JCB lecture

M+O2-

H+

Page 6: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Ionic potential and solubility Ionic potential and solubility IP = ionic charge (Z)/ionic radius (r)

• Low IP high solubility IP and metal solubility

• IP <2.5 (low): H-O > O-Me Remain in solution Ba, Li, Rb, & Sr

• 2.5 < IP < 9.5 (medium): H-O ~ O-Me Tend to precipitate Cu, Ni, Pb, U, Zn, Cr, & Co

• >9.5 (high): H-O < O-Me Form oxyanions As, B, Mo, and Se

JCB lecture

M+ O2-

Page 7: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

http://www.gly.uga.edu/railsback/PTTalk/PTTalk060.html

Page 8: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.
Page 9: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Elemental classification Lewis acid/base Pearson’s hard/soft metals Ionic and covalent index Ionic potentials

Earth Scientist's Periodic Table of the Elements and Their Ions

Common minerals and aqueous species in soils

Familiar with equilibrium reactions Use log activity-pH graphs

Trace metals reviewTrace metals review

Page 10: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Overviewhttp://www.gly.uga.edu/railsback/PT.html

Slides’ presentation

http://www.gly.uga.edu/railsback/PTTalk/PTTalk002.html

Online table with popup text

http://www.gly.uga.edu/railsback/PTPopups2.html

Page 11: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Charges Multiple times Cation-elemental-anion-gas

Hard/soft cations Ionic potential

Page 12: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

http://www.gly.uga.edu/railsback/PTTalk/PTTalk122.html

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Page 14: Due Monday 3-28-10 Due Monday 3-28-10 Follow the guideline Follow the guideline Term paper.

Classification based on IP Medium IPMedium IP (2.5-9.5)

Strong bond w/ O: enter early in igneous rocks Make oxides-insoluble Concentrated in soils Not nutrients Least depleted from the mantle

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Fig. 6 Solubility of oxides of hard cations

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Classification based on IP Medium IPMedium IP (2.5-9.5)

Strong bond w/ O: enter early in igneous rocks Make oxides-insoluble Concentrated in soils Not nutrients Least depleted from the mantle

LowLow IPIP (<2.5) Weak bond w/ O: enter late in igneous rocks Make fluoride minerals-soluble Abundant in rivers and seawaters Serves as nutrients