
Lewis Structures and Valence Electrons
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main topic of the video?
Molecular geometry
Lewis dot structures
Periodic table trends
Chemical reactions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of Lewis symbols?
To indicate atomic number
To show atomic mass
To represent valence electrons
To visualize atomic nuclei
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the octet rule, how many valence electrons do most atoms need to be stable?
2
8
4
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you determine the number of valence electrons for an element?
By its group number in the periodic table
By its electron configuration
By its atomic number
By its atomic mass
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Lewis dot structure for a single chlorine atom?
Eight dots
Seven dots
Two dots
One dot
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a molecule like methane, what is the central atom?
Nitrogen
Oxygen
Carbon
Hydrogen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if single bonds do not satisfy the octet rule for all atoms in a molecule?
Change the central atom
Remove electrons
Use double or triple bonds
Add more atoms
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