Free Printable Ionic and Covalent Bonds Worksheets - Free Printable

Let's solve this Ionic vs Covalent Bonds Worksheet step by step.

We need to determine whether each compound forms an ionic bond or a covalent bond based on the elements involved.

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🔍 Guidelines for Determining Bond Type:

- Ionic Bonds: Form between a metal and a nonmetal. Electrons are transferred.
- Covalent Bonds: Form between two nonmetals. Electrons are shared.
- Exceptions: Some compounds (like polyatomic ions) may have ionic bonds even if they contain covalent subunits, but the overall bond type is determined by the atoms involved.

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Now, let’s go through each compound:

| Compound | Elements Involved | Metal/Nonmetal? | Bond Type |
|--------|-------------------|------------------|-----------|
| BaO | Barium (Ba - metal), Oxygen (O - nonmetal) | Metal + Nonmetal | Ionic |
| Na₂O | Sodium (Na - metal), Oxygen (O - nonmetal) | Metal + Nonmetal | Ionic |
| NI₃ | Nitrogen (N - nonmetal), Iodine (I - nonmetal) | Nonmetal + Nonmetal | Covalent |
| CBr₄ | Carbon (C - nonmetal), Bromine (Br - nonmetal) | Nonmetal + Nonmetal | Covalent |
| CaCl₂ | Calcium (Ca - metal), Chlorine (Cl - nonmetal) | Metal + Nonmetal | Ionic |
| H₂O | Hydrogen (H - nonmetal), Oxygen (O - nonmetal) | Nonmetal + Nonmetal | Covalent |
| Al₂O₃ | Aluminum (Al - metal), Oxygen (O - nonmetal) | Metal + Nonmetal | Ionic |
| Mg₃P₂ | Magnesium (Mg - metal), Phosphorus (P - nonmetal) | Metal + Nonmetal | Ionic |
| O₂ | Oxygen (O - nonmetal) | Two identical nonmetals | Covalent (diatomic molecule) |
| NaCl | Sodium (Na - metal), Chlorine (Cl - nonmetal) | Metal + Nonmetal | Ionic |
| SO₂ | Sulfur (S - nonmetal), Oxygen (O - nonmetal) | Nonmetal + Nonmetal | Covalent |
| FeCl₂ | Iron (Fe - metal), Chlorine (Cl - nonmetal) | Metal + Nonmetal | Ionic |
| H₂ | Hydrogen (H - nonmetal) | Two identical nonmetals | Covalent |
| PI₃ | Phosphorus (P - nonmetal), Iodine (I - nonmetal) | Nonmetal + Nonmetal | Covalent |
| BaSO₄ | Barium (Ba - metal), Sulfate (SO₄²⁻ - polyatomic ion) | Metal + Polyatomic ion | Ionic (overall, though SO₄ has covalent bonds internally) |
| KI | Potassium (K - metal), Iodine (I - nonmetal) | Metal + Nonmetal | Ionic |
| CH₄ | Carbon (C - nonmetal), Hydrogen (H - nonmetal) | Nonmetal + Nonmetal | Covalent |
| LiBr | Lithium (Li - metal), Bromine (Br - nonmetal) | Metal + Nonmetal | Ionic |

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✔ Final Answer Table:

| Compounds | Type of Bond |
|----------|--------------|
| BaO | Ionic |
| Na₂O | Ionic |
| NI₃ | Covalent |
| CBr₄ | Covalent |
| CaCl₂ | Ionic |
| H₂O | Covalent |
| Al₂O₃ | Ionic |
| Mg₃P₂ | Ionic |
| O₂ | Covalent |
| NaCl | Ionic |
| SO₂ | Covalent |
| FeCl₂ | Ionic |
| H₂ | Covalent |
| PI₃ | Covalent |
| BaSO₄ | Ionic |
| KI | Ionic |
| CH₄ | Covalent |
| LiBr | Ionic |

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📝 Summary:

- Ionic bonds occur when a metal combines with a nonmetal.
- Covalent bonds occur when two nonmetals share electrons.
- Diatomic molecules like O₂ and H₂ are covalent.
- Even though BaSO₄ contains covalent bonds within the sulfate ion, the bond between Ba²⁺ and SO₄²⁻ is ionic, so it's classified as ionic.

Let me know if you'd like explanations for any specific ones!