Lewis Structure Practice Worksheet
A Grade 9 Science worksheet focusing on understanding and drawing Lewis structures for various molecules and ions.
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Lewis Structure Practice Worksheet
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Read each question carefully and follow the instructions to draw Lewis structures or answer questions about chemical bonding.
1. In a Lewis structure, dots represent electrons.
2. A single bond consists of shared electrons.
3. The octet rule states that atoms tend to gain, lose, or share electrons to achieve valence electrons.
Draw the Lewis structure for the following molecules:
4. H2O (Water)
5. CO2 (Carbon Dioxide)
6. NH3 (Ammonia)
7. All atoms always satisfy the octet rule in their Lewis structures.
True
False
8. A double bond involves four shared electrons.
True
False
9. How many valence electrons does a carbon atom have?
2
4
6
8
10. Which of the following molecules contains a triple bond?
CH4
O2
N2
H2O
11. Explain why understanding Lewis structures is important in chemistry.