Atoms & Molecules Quiz: Atomic Theory - 8th Grade Science

15 Questions | Total Attempts: 14262

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Atoms & Molecules Quiz: Atomic Theory - 8th Grade Science

Welcome to the Atoms & Molecules Quiz: Atomic Theory - 8th grade Science. Science is a fun subject to learn, and it gives us a clear picture of what goes on in the world today and the processes behind it. It may not look easy to understand as you keep going from grade to grade, but with proper practice, you may get to understand it better. Please find out how much you know about 8th-grade Science and how it helps you too. Take this science quiz now!


Questions and Answers
  • 1. 
    Elements with atomic numbers higher than 92 are not natural but can be created by man or____________, by crashing nuclear particles into each other.
    • A. 

      Pounded

    • B. 

      Combined by radioactivity

    • C. 

      Synthesized

    • D. 

      A particle accelerator

    • E. 

      Compounded

  • 2. 
    All semimetals are solids at room temperature, however, nonmetals tend to be ________.
    • A. 

      Liquids

    • B. 

      Gases

    • C. 

      Melting

    • D. 

      Decaying

    • E. 

      Solid but soon turn into gas

  • 3. 
    Which part of the periodic table is the diatomic molecules, or molecules that have two atoms found?
    • A. 

      Right

    • B. 

      They are scattered all over the periodic table

    • C. 

      Left

    • D. 

      They are not on the periodic table

    • E. 

      Undetermined

  • 4. 
    What is a beta particle?
    • A. 

      A fully charged particle with two protons and two neutrons.

    • B. 

      A particle, which is broken into four slices, and they recombine after photosynthesis.

    • C. 

      A fast moving electron that is given off from the nucleus during radioactive decay.

    • D. 

      The amount of particles total in an atom.

  • 5. 
    If a metal reacts violently with water, it is most likely in group _____ of the periodic table.
    • A. 

      1

    • B. 

      7

    • C. 

      6

    • D. 

      17

    • E. 

      14

  • 6. 
    What are the elements in groups 3-12 called?
    • A. 

      Atomic metals

    • B. 

      Alkaline earth metals

    • C. 

      Alkali metals

    • D. 

      Transition metals

    • E. 

      Semi metals

  • 7. 
    Most of the metals that surround the zigzag line on the periodic table are?
    • A. 

      Semimetals

    • B. 

      Transition metals

    • C. 

      Alloys

    • D. 

      Acids

    • E. 

      Bases

  • 8. 
    What are  the major differences between the halogen family and the inert gases?
    • A. 

      Halogen is reactive, whereas inert gases are not.

    • B. 

      They do not have any differences

  • 9. 
    True or False:sodium and potassium are the two most important alkali metals
    • A. 

      True

    • B. 

      False

  • 10. 
    True or False:the chemical symbol of an element is the number of neutrons the element has.
    • A. 

      True

    • B. 

      False

  • 11. 
    True or False:The atomic number is the number of protons an atom has.
    • A. 

      True

    • B. 

      False

  • 12. 
    True or False:nonmetals are bad conductors of electricity.
    • A. 

      True

    • B. 

      False

  • 13. 
    True or False:semiconductors can only conduct electricity under certain conditions.
    • A. 

      True

    • B. 

      False

  • 14. 
    Which group of metals reacts violently with the metals from group one?
    • A. 

      14

    • B. 

      15

    • C. 

      3

    • D. 

      17

    • E. 

      3-12

  • 15. 
    Which is an example of a semiconductor?
    • A. 

      Rubber

    • B. 

      Silicon

    • C. 

      Plastic

    • D. 

      Wood

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