Revision NotesExam QuestionsFlashcardsPast PapersMock Exams
IBChemistryDPSLExam QuestionsModels of the Particulate Nature of MatterElectronic Configurations

Electronic Configurations (DP IB Chemistry: SL): Exam Questions

57 mins19 questions

Select a download format for Electronic Configurations

Scroll for more

Select an answer set to view for
Electronic Configurations

Easy
Medium
Hard
11 mark

Using the Aufbau Principle and Hund’s rule, deduce which element below has the greatest number of unpaired electrons in its ground state.

  • Z = 13

  • Z = 14

  • Z = 15

  • Z = 16

Choose your answer

21 mark

Which electron transition would emit radiation of the longest wavelength?

2-1-e-q10-mcqs-ib-chemistry

    Choose your answer

    3
    Sme Calculator    1 mark

    Which spectrum belongs to hydrogen?

    eARGWkkX_hydrogen-spectrum

      Choose your answer

      11 mark

      There are six unpaired electrons in atoms of element Z. What could element Z be?

      • sulfur

      • iron

      • carbon

      • chromium

      Choose your answer

      21 mark

      The diagram shows three orbitals labelled 1, 2 and 3. 

      2-1-m-q5-mcqs-ib-chemistry

      What is the correct label for each orbital?

      • px, py and pz

      • s, pz and py

      • s, px and pz

      • s, px and py

      Choose your answer

      31 mark

      What is the electronic configuration of an ion with a single negative charge and atomic number 17?

      • 1s2 2s2 2p6 3s1 3p6

      • 1s2 2s2 2p6 3s2 3p6

      • 1s2 2s2 2p6 3s1 3p5

      • 1s2 2s2 2p6 3s2 3p5

      Choose your answer

      41 mark

      What is the correct sequence for the orbitals shown in an atom of vanadium in order of decreasing energy?

      • 3s 3p 4s 3d

      • 4s 3d 3s 3p

      • 4s 3d 3p 3s

      • 3d 4s 3p 3s

      Choose your answer

      51 mark

      Deduce the correct information about the element tin, Sn (Z = 50)

       

      Number of occupied main energy levels

      Number of electrons in the highest main energy level

      A

      4

      4

      B

      4

      14

      C

      5

      4

      D

      5

      14

        Choose your answer

        11 mark

        Which species produces a half-filled set of p orbitals on losing an electron?

        • Li+

        • F

        • N

        • N-

        Choose your answer

        21 mark

        Which statement explains why electrons pair up in orbitals before occupying an orbital of a higher energy level?

        • the energy from repulsion is greater than the jump to a higher orbital

        • electrons occupy higher energy orbitals before lower energy orbitals

        • electrons in lower orbitals have higher energies

        • the energy from repulsion is less than the jump to a higher orbital

        Choose your answer

        31 mark

        A line emission spectrum occurs when

        • electrons release energy as they move from high to low energy levels

        • electrons release energy as they move from low to high energy levels

        • electrons absorb energy as they move from high to low energy levels

        • electrons absorb energy as they move from low to high energy levels

        Choose your answer

        4
        Sme Calculator        1 mark

        Which statement is true about the spectra shown?

        hydrogen-spectrum-hl

        • All the lines in R have the same energy

        • Q and S could represent line emission spectra

        • Only S shows the characteristic pattern of a line emission spectrum

        • P indicates the element has 4 pairs of electrons at different energy levels 

        Choose your answer