Simple Quiz On Atomic Structure

10 Questions | Total Attempts: 11399

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Simple Quiz On Atomic Structure

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