Worksheet on chemical bonding types: ionic and covalent, with examples and classification tasks.

Absolutely! Let’s solve Part 1 of your worksheet step by step.

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🔁 REMEMBER:

- Ionic Bond: Between a Metal (M) and a Non-Metal (NM) → M + NM
- Covalent Bond: Between two Non-Metals (NM) → NM + NM

We’ll go compound by compound, identify Element 1 and Element 2 as metal or non-metal, then determine the bond type.

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## ✔ SOLUTION:

| Compound | Element 1 (metal or non-metal?) | Element 2 (metal or non-metal?) | Bond Type |
|----------|----------------------------------|----------------------------------|-----------|
| NO₂ | N = non-metal | O = non-metal | Covalent |
| PI₃ | P = non-metal | I = non-metal | Covalent |
| MgBr₂ | Mg = metal | Br = non-metal | Ionic |
| CaO | Ca = metal | O = non-metal | Ionic |
| H₂O | H = non-metal | O = non-metal | Covalent |
| K₂O | K = metal | O = non-metal | Ionic |
| AlF₃ | Al = metal | F = non-metal | Ionic |
| O₂ | O = non-metal | O = non-metal | Covalent |
| CuCl₂ | Cu = metal | Cl = non-metal | Ionic |
| NO₂ | N = non-metal | O = non-metal | Covalent *(same as first NO₂)* |
| CO₂ | C = non-metal | O = non-metal | Covalent |
| HF | H = non-metal | F = non-metal | Covalent |
| Rb₂S | Rb = metal | S = non-metal | Ionic |
| NBr₃ | N = non-metal | Br = non-metal | Covalent |
| Fe₂O₃ | Fe = metal | O = non-metal | Ionic |
| CCl₄ | C = non-metal | Cl = non-metal | Covalent |

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## 📝 EXPLANATION:

⚛️ How to classify elements:

- Metals: Typically found on the left side and center of the periodic table (e.g., Mg, Ca, K, Al, Cu, Rb, Fe).
- Non-metals: Found on the right side (e.g., N, O, P, I, H, F, Cl, S, C).

> 💡 Hydrogen (H) is a special case — it’s a non-metal, even though it’s on the left. It forms covalent bonds with other non-metals (like in H₂O, HF).

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🧪 Bond Type Rules:

- If both elements are non-metals → Covalent bond (they share electrons).
- If one is metal, one is non-metal → Ionic bond (electron transfer occurs).

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🧩 Examples:

- MgBr₂: Magnesium (metal) + Bromine (non-metal) → Ionic
- PI₃: Phosphorus (non-metal) + Iodine (non-metal) → Covalent
- O₂: Oxygen + Oxygen → both non-metals → Covalent (diatomic molecule)
- AlF₃: Aluminum (metal) + Fluorine (non-metal) → Ionic
- HF: Hydrogen (non-metal) + Fluorine (non-metal) → Covalent (even though very polar!)

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✔ All entries filled correctly based on standard chemistry rules.

Let me know if you’d like help with Part 2 or explanations for any specific compound!