
Formal Charges and Lewis Structures

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

Liam Anderson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is placed at the center when drawing the Lewis structure for IO2F2-?
Oxygen
Iodine
Fluorine
Hydrogen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many total valence electrons are there in IO2F2-?
32
34
36
38
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step after arranging the atoms in the Lewis structure?
Complete the bonds on the central atom
Add lone pairs to fluorines
Complete the octets on the oxygens
Calculate formal charges
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can iodine have more than eight valence electrons?
It is a noble gas
It forms ionic bonds
It is in period 3 or below
It is highly electronegative
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What formal charge does each oxygen initially have in the structure?
-2
+1
-1
0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formal charge on the central iodine before adjustments?
0
-1
+1
+2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What adjustment is made to achieve optimal formal charges?
Add more electrons to fluorine
Remove electrons from iodine
Form double bonds with oxygen
Add lone pairs to iodine
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