Simple Quiz On Atomic Structure

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Simple Quiz On Atomic Structure - Quiz

Simple quiz on atomic structure, chemical bonding and the periodic table.


Questions and Answers
  • 1. 
    What are isotopes?
    • A. 

      A) They have the same number of neutrons but different number of protons.

    • B. 

      B) They have different number of neutrons and protons but same number of electrons

    • C. 

      C) They have different number of neutrons and electrons but same number of protons

    • D. 

      D) They have different number of neutrons but same number of protons.

  • 2. 
    If a principal quantum shell has the number n=2, what is the maximum number of electron it can have?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

  • 3. 
    Which electronic configuration represents Chromium?
    • A. 

      A) 1s2 2s2 2p6 3s2 3p6 4s1

    • B. 

      B) 1s2 2s2 2p6 3s2 3p4 4s2

    • C. 

      C) 1s2 2s2 2p6 3s2 3p5 4s1

    • D. 

      D) 1s2 2s2 2p6 3s2 4s1 3p6

  • 4. 
    Given that Copper exists as copper 63 and copper 65 and their relative atomic mass is 63.6, find the relative abundance of each isotope.
    • A. 

      Cu63 - 30 Cu 65 - 70

    • B. 

      Cu 63 - 30 Cu 65 - 70

    • C. 

      Cu 63 - 40 Cu 65 - 60

    • D. 

      Cu 63 - 60 Cu 65 - 40

  • 5. 
    Particles, ions or atoms that have the same number of ... are isoelectronic?
    • A. 

      Protons

    • B. 

      Neutrons

    • C. 

      Electrons

    • D. 

      Elements

  • 6. 
    Which electronic configuration is stable?
    • A. 

      A) 1s2 2s2 2p6

    • B. 

      B) 1s2 2s2 2p6 3s2 3p6 4s1

    • C. 

      C) 1s2 2s2 2p6 3s2

    • D. 

      D) 1s2 2s2 2p3

  • 7. 
    Aufbau’s Principle states that:
    • A. 

      A) Electrons in their ground state will occupy orbitals in order of their energy level; the lowest energy levels are always filled first.

    • B. 

      B) The orbitals of a subshell must be singly occupied with electrons of parallel spin before they can be occupied in pairs.

    • C. 

      C) An orbital cannot contain more than 2 electrons. If 2 electrons occupy the same orbitals, they must have opposite spins; i.e. one up spin and one down spin

    • D. 

      D) None of the above

  • 8. 
    Since isotopes have the same number of electrons, they then have the same...?
    • A. 

      Chemical properties

    • B. 

      Melting point

    • C. 

      Boiling point

    • D. 

      Density

  • 9. 
    Element P has the electronic configuration 2.8.6.Element Q has the electronic configuration 2.8.8.2.Which statement about the compound PQ is probably correct?
    • A. 

      It will have a low boiling point.

    • B. 

      It will conduct electricity when molten.

    • C. 

      An aqueous solution of the compound will not conduct electricity.

    • D. 

      It will have a giant covalent structure.

  • 10. 
    Xenon is in group 0. Which statement about xenon is true?
    • A. 

      Xenon molecules are diatomic

    • B. 

      Xenon supports combustion

    • C. 

      Xenon has two outer electrons

    • D. 

      Xenon is unreactive

  • 11. 
    In fleming's left hand rule, if the first finger is pointing at the field and the second finger is pointing at the current, then the thumb is at...?
    • A. 

      Direction of field

    • B. 

      Direction of current

    • C. 

      Direction of electrons

    • D. 

      Direction of resultant force

  • 12. 
    What is the shape of the p-orbital? 
    • A. 

      Dumb-bell shape

    • B. 

      Pyramid shape

    • C. 

      Spherical shape

    • D. 

      Square shape

  • 13. 
    The first period consists of two elements. How many elements does the second period consist of?
    • A. 

      2

    • B. 

      8

    • C. 

      10

    • D. 

      18

  • 14. 
    Which of the following are the properties of graphite?
    • A. 

      Hard, high melting point.

    • B. 

      Soft, low melting point

    • C. 

      Soft, high melting point

    • D. 

      Hard, low melting point.

  • 15. 
    Potassium and Francium are both in group I of the periodic table. Which one of the following statements is correct?
    • A. 

      Both metals form acidic oxides.

    • B. 

      Francium has more electrons in its outermost shell than potassium.

    • C. 

      Francium has a lower melting point than potassium.

    • D. 

      Francium reacts less quickly with water than potassium.

  • 16. 
    Which combination is correct for diamond?
    • A. 

      Covalent bond, 4 atoms joined to each carbon atom

    • B. 

      Ionic bond, 4 atoms joined to each carbon atom

    • C. 

      Covalent, 3 atoms joined to each carbon atom

    • D. 

      Ionic, 3 atoms joined to each carbon atom

  • 17. 
    Boron and aluminium are both in group III of the periodic table. Which statement is true for these two elements?
    • A. 

      Both elements are metals

    • B. 

      Both elements contain 3 electrons in the outermost shells.

    • C. 

      Both elements form acidic oxides.

    • D. 

      Both elements have the same proton number.

  • 18. 
    Which statement about the change in properties of the elements from left to right across a period is correct?
    • A. 

      The elements change from being metals to non-metals.

    • B. 

      The number of neutrons in an atom decreases.

    • C. 

      The electrical conductivity of the elements increases.

    • D. 

      The number of protons in an atom decreases.

  • 19. 
    Allotropes are of...
    • A. 

      The same element and have similar properties

    • B. 

      Different elements but have similar properties

    • C. 

      Different elements and different properties

    • D. 

      The same element but of different properties

  • 20. 
    If Fluorine were mixed with Sodium Chloride, what would be the outcome?
    • A. 

      Sodium Fluoride, Sodium Chloride

    • B. 

      Potassium Fluoride and Chlorine

    • C. 

      Sodium Fluoride and Chlorine

    • D. 

      No reaction

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