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On a piece of scratch paper, write out the Lewis Dot Diagram for each of
the indicated elements and determine the following for each:
a)The number of Lone Pairs the atom possesses in its valence shell.b)The number of Unpaired Electrons the atom possesses in its valence shell.c)The number of bonds the atom will form.
1.Oxygen 2.Carbon 3.Hydrogen 4.Nitrogen
Your Answer:
1.O 2.Two lone pairs 3.Two unpaired electrons 4.two bonds
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Question 1
Chem 219 Principles of Organic Chemistry Module 1 Exam - Portage Learning
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Classify the bonding between the given pairs of atoms as ionic, covalent, or polar covalent. Use the table of electronegativities shown below to help with the classification.
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Question 2
- 1 b) 3 c) 3 Nitrogen –
- 0 b) 1 c) 1 Hydrogen-
- 0 b) 4 c) 4 Carbon –
- 2 b) 2 c) 2 Oxygen –
Answer:
4.N 5.One lone pair 6.three unpaired electrons 7.three bonds 3.H 4.Zero lone pairs 5.One unpaired electron 6.one bond 2.C 3.Zero lone pairs 4.Four unpaired electrons 5.four bonds 2 / 3
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- Br and Br
- K and Cl
- P and Cl
- C and O
- Na and Br
Your Answer:
- covalent
- Ionic
- covalent
- polar covalent
- ionic
Answer:
a. Br-Br: Electronegativity difference ( ) = 0 = COVALENT (or
pure covalent)
b. K-Cl: ( ) = 2.2 = IONIC
c. P-Cl: ( )= 0.9 = POLAR COVALENT
d. C-O: ( )= 1.0 = POLAR COVALENT
e. Na-Br: ( ) = 1.8 = POLAR COVALENT
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