ChemistryChapters 2–3

Atoms & Stoichiometry

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Answer each question and check where every mark went.

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Structured questions0 / 4
  1. 1

    Question 1

    The table shows information about six particles, labelled P to U.

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    14 marksOpen
  2. 2

    Question 2

    This question is about ionic bonding in magnesium chloride, MgCl₂. The electronic configuration of magnesium is 2,8,2 and the electronic configuration of chlorine is 2,8,7.

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    12 marksOpen
  3. 3

    Question 3

    This question is about covalent bonding in nitrogen trifluoride (NF₃) and carbon dioxide (CO₂). The electronic configuration of nitrogen is 2,5 and the electronic configuration of fluorine is 2,7.

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    12 marksOpen
  4. 4

    Question 4

    This question is about different types of bonding and the properties they produce. Copper is a metal used in electrical wiring.

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    16 marksOpen