Test Your Understanding About Atomic Structure

12 Questions | Total Attempts: 90

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Atomic Structure Quizzes & Trivia

Pls try out this quiz to test your understanding.


Questions and Answers
  • 1. 
    The nucleus of an atom
    • A. 

      Always contains protons and neutrons

    • B. 

      Is neutral

    • C. 

      Contains protons only

    • D. 

      Usually contains protons and neutrons

  • 2. 
    Which of the following statements about the atom is true?
    • A. 

      No of electrons= no of protons

    • B. 

      No of protons = no of neutrons

    • C. 

      No of electrons = no of neutrons

    • D. 

      No of neutrons = no of protons

  • 3. 
    The neutron is a particle that has
    • A. 

      A mass of 1g, which is the same as that of a proton

    • B. 

      The same charge as the electron

    • C. 

      A mass that is approximately that of the proton

    • D. 

      The same charge as that of the proton

  • 4. 
    The nucleon number of chlorine is 35 and its proton number is 17. It can therefore be deduced that the atom has
    • A. 

      35 neutrons

    • B. 

      18 neutrons

    • C. 

      17 neutrons

    • D. 

      35 protons and electrons

  • 5. 
    All isotopes of an element contain
    • A. 

      The same number of electrons as neutrons

    • B. 

      The same number of protons as neutrons

    • C. 

      The same number of neutrons

    • D. 

      The same number of protons

  • 6. 
    The structures of five atoms are given in the table below. Determine which pairs are isotopes. Atom No. of neutrons No. of electrons No. of protons P 16 15 15 Q 16 16 16 R 17 15 15 S 17 17 17 T 18 16 16
    • A. 

      P & R

    • B. 

      P & S

    • C. 

      Q & R

    • D. 

      Q & S

  • 7. 
    The chlorine atom and ion are
    • A. 

      Chemically identical

    • B. 

      Have the same number of electrons

    • C. 

      Isotopes

    • D. 

      Have the same number of protons

  • 8. 
    The atoms in the Periodic Table are arranged in terms of
    • A. 

      Ascending proton numbers

    • B. 

      Electrons lost

    • C. 

      Descending proton numbers

    • D. 

      Electrons gained

  • 9. 
    The sulphur atom contains 16 electrons. It can be deduced that
    • A. 

      It has 16 valence electrons

    • B. 

      The atomic mass is 16

    • C. 

      It is found in group 6

    • D. 

      It is a metal

  • 10. 
    Elements in the same group of the Periodic Table have the
    • A. 

      Same number of electrons

    • B. 

      Same number of valence electrons

    • C. 

      The same number of electron shells

    • D. 

      The same number of filled electron shells

  • 11. 
    Valence electrons refer to those that
    • A. 

      Are found in the first electron shell of the atom

    • B. 

      Are given away by an atom to form an ion

    • C. 

      Are taken in by the atom

    • D. 

      Exist in the outermost shell of the atom

  • 12. 
    Which of the following represents the electronic configuration of calcium (atomic number of Ca = 20)?
    • A. 

      (2, 8, 10)

    • B. 

      (2, 8, 8, 2)

    • C. 

      (2, 10, 8)

    • D. 

      (2, 18)