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Chemistry, Week 6

by: eshumaker1328

Chemistry, Week 6 CHM 115 04


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About this Document

We had an exam on Thursday, so notes are little short
Principles of Chemistry I
Dr. Barrows
Class Notes
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This 2 page Class Notes was uploaded by eshumaker1328 on Thursday October 6, 2016. The Class Notes belongs to CHM 115 04 at Grand Valley State University taught by Dr. Barrows in Fall 2016. Since its upload, it has received 4 views. For similar materials see Principles of Chemistry I in Chemistry at Grand Valley State University.

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Date Created: 10/06/16
Tuesday, October 4, 2016 Chemistry, Week 6 Formation - reaction type: • oxidation reactions— Na —> Na+ (equivalent to Ne) - + is oxidation, therefore you subtract the amount • reduction reactions— N —> N3- (equivalent to Ne) - - is reduction, therefore you add the amount - “Oil Rig”: oxidation is loss of electrons, reduction is the gain of electrons - Trends • Metals tend to undergo oxidation* • Nonmetals tend to undergo reduction • Carbon family is classified as a nonmetal • Si and Ge are both (depends on what they are with to know oxid. and red.) Sn —> Sn4+ or Sn2+ • - [Kr] 4d10 - [Kr] 5s2 4d10 • Pb —> Pb4+ or Pb2+ - [Xe] 4f14 5d10 - [Xe]6s2 4f14 5d10 Unit 2 Terms to know - period - group - family 1 Tuesday, October 4, 2016 - halogens • next to noble gases - alkali metals - alkaline earth metals - transition metals - chalcogens • oxygen group - pnictogens • nitrogen group - noble gases • helium group - metals - non metals - metalloids - semi-metals Periodic Trends (only s and p blocks) Property Top to Bottom Left to Right Atomic Radius increases decreases First Ionization energy decreases increases (amount of energy required to move an electron) x -> x+ + e- Electron Affinity decreases increases (amount of energy change when an atom gains an electron e- + x -> x- Electronegativity (a measure of the tendency of an atom to attract a bonding pair of electrons) Metallic character more less 2


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