
Valence Electrons and Lewis Structures

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

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many total valence electrons are present in the S2O molecule?
30
24
18
12
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element is placed at the center of the S2O Lewis structure?
Sulfur
Hydrogen
Carbon
Oxygen
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial step in forming chemical bonds in the Lewis structure?
Placing electrons between atoms
Completing octets on central atoms
Calculating formal charges
Adding lone pairs to central atom
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adjusting the Lewis structure to satisfy the octet rule?
To change the central atom
To decrease the number of bonds
To ensure all atoms have eight electrons in their outer shell
To increase the number of valence electrons
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formal charge on the central sulfur atom in the most favorable Lewis structure of S2O?
+2
+1
-1
0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to have formal charges as close to zero as possible?
To achieve the most stable structure
To maximize the number of bonds
To increase molecular weight
To minimize the number of lone pairs
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of resonance structures in the context of S2O?
They illustrate alternative electron distributions
They represent different molecular weights
They indicate the presence of isotopes
They show different possible arrangements of atoms
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