Chem 1201 Test 3 Ch 8 Lewis Dot Short Form (1)

Chem 1201 Test 3 Ch 8 Lewis Dot Short Form (1) - lecules...

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Chem 1201 Lewis Dot Structures 1. Sum up the valence electrons fro Valence electrons = A Colum a) Add one electron for eve b) Subtract one electron fo 2. Arrange atoms such that the cen This means that F and O are 3. Place the valence electrons on th Left over electrons go to th 4. If central atom does not have an make multiple bonds using 2 non H and F never make a doub O, N, and C can make multi These are common for neutral mole Test 3 - Ch 8 rom each atom in the molecule. mn number on Periodic Table (does not exceed the ery overall negative charge or every overall positive charge ntral atom has the lowest electronegativity re usually on the outside the outside atoms making octets. he central atom. n octet, n-bonding electrons per extra bond. ble bond tiple bonds
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Unformatted text preview: lecules: Page 1 number 8) Chem 1201 Valence Electrons: Equals A A bond counts for two elec For Octet Rule: +1 -1 A bond counts for only one Formal Charge (F.C.) F.C. = # Valence elect A bond counts for only one NH 3 Central Atom = 8 electrons F.C. on N = 5 – 2 – 3 = 0 (PH 3 is similar) HCN Central Atom = 8 electrons CO 2 Each carbon has 4 bonds Test 3 - Ch 8 A Column number, ex. B = 3, C = 4, N = 5, ctrons when counting for the Octet Rule (pg 187) electron for each overall negative charge electron for each overall positive charge e electron when counting for Formal Charge (pg 190 trons – Non-bonded electrons - # Bonds e electron when counting for Formal Charge (pg 190 Page 2 , O = 6 ) ) Chem 1201 Types of Bonds Test 3 - Ch 8 Page 3...
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This note was uploaded on 11/21/2011 for the course ENGL 1200 taught by Professor Wranger during the Spring '11 term at LSU.

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Chem 1201 Test 3 Ch 8 Lewis Dot Short Form (1) - lecules...

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