Covalent Formulas Worksheet
A Grade 10 chemistry worksheet focusing on understanding and writing covalent formulas, including Lewis structures and molecular geometry.
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Covalent Formulas Worksheet
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Read each question carefully and provide your best answer. Show all your work for calculations and drawing structures.
1. Which of the following elements is most likely to form a covalent bond with another nonmetal?
Sodium (Na)
Calcium (Ca)
Carbon (C)
Iron (Fe)
2. What type of bond is formed when atoms share electrons?
Ionic bond
Metallic bond
Covalent bond
Hydrogen bond
1. In a covalent bond, electrons are transferred from one atom to another.
True
False
2. The molecule H₂O is an example of a covalent compound.
True
False
1. A covalent bond is formed between two atoms.
2. In a single covalent bond, pair(s) of electrons are shared.
3. The ability of an atom to attract electrons in a chemical bond is called .
1. Draw the Lewis structure for carbon dioxide (CO₂).

2. Explain the difference between a polar and a nonpolar covalent bond.
Match the term on the left with its definition on the right.
1. Octet Rule
a. A bond where electrons are shared unequally
2. Polar Covalent Bond
b. Atoms tend to gain, lose, or share electrons to achieve eight valence electrons
3. Nonpolar Covalent Bond
c. A bond where electrons are shared equally