Final Quiz - Atomic Structure And Chemical Bonding

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Final Quiz - Atomic Structure And Chemical Bonding - Quiz

A 15-question quiz on Atomic Structure and Chemical Bonding on www. Thechemwhiz. Piczo. Com. You'll need a calculator of some sort. Good luck.


Questions and Answers
  • 1. 
    This type of bond is brittle, and only conducts electricity when dissolved. Which bond is it?
    • A. 

      Metallic Bonding

    • B. 

      Ionic Bonding

    • C. 

      Covalent Bonding

  • 2. 
    Element N has four isotopes. N-19, N-20, N-21, and N-22.  Out of 100 atoms of the element N, 20 are N-19. 9 are N-20 52 are N-21 19 are N-22 Calculate the relative atomic mass of N.
  • 3. 
    Silicon has a proton number of 14. State it's electron configuration.
  • 4. 
    What property do metals have that allow them to be hit or shaped without breaking?
    • A. 

      Conductivity

    • B. 

      Density

    • C. 

      Mobility

    • D. 

      Malleability

  • 5. 
    Vanadium is more reactive than Strontium.
    • A. 

      True

    • B. 

      False

  • 6. 
    Beryllium has a charge of +2. Fluorine has a charge of -1. What's the chemical formula?
    • A. 

      Be2F2

    • B. 

      Be4F8

    • C. 

      BeF2

    • D. 

      Be2F

  • 7. 
    Which group of the periodic table has elements which are extremely reactive and silvery soft?
    • A. 

      Alkali Metals

    • B. 

      Noble Gases

    • C. 

      Alkali Earth Metals

    • D. 

      Transition Metals

  • 8. 
    Which property of an element does an isotope change?
    • A. 

      Reaction rates

    • B. 

      Malleability

    • C. 

      Melting point

    • D. 

      Shininess

  • 9. 
    The chemical Formaldehyde has a chemical formula of CH2O.  The carbon atom needs and can share 4 electrons. The oxygen atom needs and can share 2 electrons. The hydrogen atoms need and can share 1 electron. State the structure that is true for this bond.
    • A. 

      The oxygen atom has a single bond with the Carbon atom, and the hydrogen atoms have a double bond with the Carbon atom.

    • B. 

      The Hydrogen atoms each have a double bond with the Oxygen atom, and the Oxygen atom has a single bond with the Carbon atom.

    • C. 

      The carbon bond has a single bond with both hydrogen atoms, and a double bond with the oxygen atom.

    • D. 

      The Carbon atom has a single bond with the Oxygen atom, and the Hydrogen atoms have a single bond with the Oxygen atom.

  • 10. 
    The electron configuration for the element in Group 13/Group 3, period 3 is 2,8,3.
    • A. 

      True

    • B. 

      False

  • 11. 
    Metallic bonds are generally stronger when...
    • A. 

      There are more electrons in the sea of electrons.

    • B. 

      There are more neutrons.

    • C. 

      There are less electrons in the sea of electrons.

    • D. 

      The metal can conduct electricity.

  • 12. 
    Element X has 2 electron shells.  The outer shell has 6 electrons.  It is a nonmetal. Which element is Element X?
    • A. 

      Fluorine

    • B. 

      Chlorine

    • C. 

      Carbon

    • D. 

      Oxygen

  • 13. 
    Beryllium (Be) has a charge of +2. Nitrogen (N) has a charge of -3. What's the chemical formula?
    • A. 

      Be6N4

    • B. 

      Be3N2

    • C. 

      Be2N

  • 14. 
    Uranium has three isotopes. 0.005% is Uranium-234. 0.720% is Uranium-235. 99.275% is Uranium-238. Give the approximate relative atomic mass of Uranium, to four decimal places.
  • 15. 
    For a nice and easy final question, Which bond has the highest melting points?
    • A. 

      Covalent

    • B. 

      Ionic

    • C. 

      Metallic

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