S3.1 The periodic table: Classification of elements

S3.1 The periodic table: Classification of elements Quiz

IB Chemistry SL: Quiz

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5 questions, one answer each

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  1. 1. Which element is a metalloid?

    • A. Aluminium
    • B. Germanium
    • C. Phosphorus
    • D. Calcium

  2. 2. Which property decreases down group 17?

    • A. Atomic radius
    • B. Number of occupied energy levels
    • C. Electronegativity
    • D. Nuclear charge

  3. 3. An element has configuration [Ne]3s²3p¹. Where is it?

    • A. Period 3, group 13
    • B. Period 3, group 1
    • C. Period 2, group 13
    • D. Period 3, group 3

  4. 4. Which oxide gives an acidic solution with water?

    • A. Na₂O
    • B. CaO
    • C. MgO
    • D. SO₂

  5. 5. What is the oxidation state of chlorine in ClO₃⁻?

    • A. −1
    • B. +3
    • C. +5
    • D. +7

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