Periodic Table Quiz

10 Questions  I  By Mr_wong
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 Periodic Table Quiz
Remember to refer to your Periodic Table when attempting the quiz. Image from https://chemistrysrhs. Wikispaces. Com/06+Periodic+Table? F=print

  
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Questions and Answers

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  • 1. 
    An atom of an element has the electronic configuration [Kr] 5s2 4d10 5p6.Which Period and Group in the Periodic Table does it belong to?
    • A. 

      Period 4; Group VIII

    • B. 

      Period 5; Group VI

    • C. 

      Period 5; Group VIII

    • D. 

      Period 5; Group 0


  • 2. 
    Why is it that the reactivity of Group I metals increases down the group?
    • A. 

      Number of electrons increases down the group.

    • B. 

      Ionization energy increases down the group.

    • C. 

      Atomic radius increases down the group.

    • D. 

      Nuclear charge increases down the group.


  • 3. 
    Which of the following is correct about Group VII elements?
    • A. 

      They are all gases at room temperature and pressure.

    • B. 

      Reactivity increases down the group.

    • C. 

      Oxidising power decreases down the group

    • D. 

      Not all of them are diatomic, e.g. solid crystals of iodine


  • 4. 
    Why is it that noble gases are often used to fill the empty space in electric bulbs?
    • A. 

      They are abundant and easily obtained.

    • B. 

      They are inert.

    • C. 

      They have low densities.

    • D. 

      They are monoatomic.


  • 5. 
    Transition metals and their compounds are often used as catalysts in industrial processes. Why is that so?
    • A. 

      They form coloured compounds, which can be easily separated from other reagents in reactions.

    • B. 

      They have high melting and boiling points, which make them suitable for the high termperatures of industrial processes.

    • C. 

      They are cheap and abundant.

    • D. 

      They have a partially-filled d-subshell.


  • 6. 
    Element X dissolves in water to give a colourless and odourless gas. It reacts with Cl2 to give a white solid XCl. Which could be the identity of X ?
    • A. 

      Argon

    • B. 

      Sodium

    • C. 

      Iodine

    • D. 

      Fluorine


  • 7. 
    Which of the halogen below has the strongest oxidising power? 
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Iodine

    • D. 

      Astatine


  • 8. 
    When a halogen Y is added to a colourless solution of potassium iodide, the colourless solution turns brown. Which of the following CANNOT be the identity of Y?
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Bromine

    • D. 

      None of the above


  • 9. 
    An element Z forms a green compound ZO with oxygen. When exposed to air, the green solid slowly turns red-brown and becomes Z2O3. What property of Z does this show?
    • A. 

      It is a metal.

    • B. 

      It has variable oxidation states.

    • C. 

      It has high oxidising power.

    • D. 

      It is a good catalyst.


  • 10. 
    *Challenging* The lanthanoid and actinoid series are elements with proton number 57-70 and 89 -102. They belong to Group III in the Periodic Table. What do the elements have in common?
    • A. 

      They only exhibit +3 oxidation state.

    • B. 

      They are hypothetical elements because they are not shown in the main block of Periodic Table.

    • C. 

      They don't occur naturally because they are highly radioactive and decay spontaneously.

    • D. 

      They all have valence electrons in the f-orbitals.


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