CHE1501 May/Jun 2018 exam paper — questions

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  1. Question 1.1 · Atomic structure and the periodic table · 2 marks

    Identify which of the following is a homogeneous mixture.Show the full question

  2. Question 1.2 · Atomic structure and the periodic table · 2 marks

    An ion has a mass number of 37, an atomic number of 17, and a charge of -1. Determine how many protons it has.Show the full question

  3. Question 1.3 · Atomic structure and the periodic table · 2 marks

    Identify which of the following pairs of atoms/ions is isoelectronic.Show the full question

  4. Question 1.4 · Atomic structure and the periodic table · 2 marks

    Determine which of the following sets of quantum numbers describes a 3d orbital.Show the full question

  5. Question 1.5 · Atomic structure and the periodic table · 2 marks

    Determine which of the following orbital diagrams (showing arrows for 1s, 2s and 2p electrons) is impossible according to the Pauli Exclusion Principle, given the five options A, B, C, D and E shown with their respective electron arrow arrangements across the 1s, 2s and three 2p boxes.Show the full question

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