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Year 11 Chemistry Review
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Year 11 Chemistry Review
🧪 Part 1: Multiple Choice
1. Which of the following elements has the largest atomic radius?
Fluorine (F)
Chlorine (Cl)
Bromine (Br)
Iodine (I)
2. What type of bonding occurs between sodium and chlorine in NaCl?
Covalent bonding
Ionic bonding
Metallic bonding
Hydrogen bonding
3. Which subatomic particles are found in the nucleus of an atom? (Select all that apply)
Protons
Neutrons
Electrons
Positrons
4. As you move across Period 3 from left to right, the ionisation energy generally:
Increases
Decreases
Remains constant
Increases then decreases
📝 Part 2: Short Answer Questions
5. Explain why noble gases are generally unreactive. Include reference to their electron configuration.
6. Complete the following nuclear notation for carbon-14:
Mass number: ______ Atomic number: ______ Number of neutrons: ______
Mass number: ______ Atomic number: ______ Number of neutrons: ______
7. Predict the formula for the ionic compound formed between magnesium and sulfur. Explain your reasoning.
🔢 Part 3: Calculations
8. Calculate the number of moles in 44.0 g of carbon dioxide (CO₂).
Given: C = 12.0 g/mol, O = 16.0 g/mol
Given: C = 12.0 g/mol, O = 16.0 g/mol
9. How many molecules are present in 0.25 mol of water (H₂O)?
Given: Avogadro's number = 6.02 × 10²³ mol⁻¹
Given: Avogadro's number = 6.02 × 10²³ mol⁻¹
10. Balance the following chemical equation and identify the type of reaction:
_____ Mg + _____ O₂ → _____ MgO
Type of reaction: ________________
_____ Mg + _____ O₂ → _____ MgO
Type of reaction: ________________
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