Drawing Lewis Dot Structures • Chemistry
Set 2 — Foundation
How many lone pairs are there in the Lewis structure of ammonia, NH_{3}?
1
2
0
3
Which element in methane, CH_{4}, is the central atom in its Lewis structure?
Carbon
Hydrogen
Oxygen
Nitrogen
What is the Lewis structure of carbon dioxide, CO_{2}?
O=C=O
O-C-O
C-O-O
O-C=O
How many total bonds are in the Lewis structure of ethylene, C_{2}H_{4}?
4
6
2
8
In the Lewis structure of chlorine gas, Cl_{2}, how many valence electrons are shared?
2
4
1
6
What is the total number of valence electrons in a molecule of carbon tetrachloride, CCl_{4}?
32
28
24
20
In the Lewis structure of sulfur dioxide, SO_{2}, how many lone pairs are on the sulfur atom?
1
2
0
3
Which molecule has a trigonal planar molecular geometry?
BF_{3}
NH_{3}
H_{2}O
CH_{4}
In the Lewis structure of hydrogen chloride, HCl, how many total valence electrons are present?
2
4
6
8
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