What is the first step in drawing the Lewis structure for a compound?

Valence Electrons and Molecular Geometry

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Emma Peterson
FREE Resource
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the bond angles
Identify the molecular geometry
Count the total number of valence electrons
Place the least electronegative atom in the center
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many valence electrons does aluminum have?
Five
Three
Eight
Seven
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of valence electrons in AlCl3?
27
21
18
24
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which atom is placed at the center of the Lewis structure for AlCl3?
Oxygen
Hydrogen
Aluminum
Chlorine
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many valence electrons are used to form chemical bonds in AlCl3?
24
18
12
6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is aluminum an exception to the octet rule in AlCl3?
It shares electrons equally
It can hold more than eight electrons
It only needs six valence electrons
It does not form bonds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular geometry of AlCl3?
Bent
Trigonal planar
Linear
Tetrahedral
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the bond angles in the molecular geometry of AlCl3?
90 degrees
120 degrees
109.5 degrees
180 degrees
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