C1 Key Facts By Mai

16 Questions

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C1 Key Facts By Mai

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Questions and Answers
  • 1. 
    Compress means to [Blank]. Solids and liquids can't be [Blank] as there is no space for the [Blank] to move in to.
  • 2. 
    Particles in solids, liquids and gases are held together by [Blank] forces of attraction. These forces are strongest in [Blank] and weakest in [Blank]
  • 3. 
    Select the ones you think are true to the factors of a physical reaction
    • A. 

      They are reversible

    • B. 

      They break the electrostatic forces

    • C. 

      The particles change

    • D. 

      The particles become closer or further apart

  • 4. 
    A chemical reaction is [Blank]. The chemical bonds between the atoms [Blank] and the particles join together in [Blank] ways to create new substances. 
  • 5. 
    Here's an easy one: An atom is the smallest part of an element. True or False? 
    • A. 

      True

    • B. 

      False

  • 6. 
    Limitations of the particle model are that it doesn't take into account the:
    • A. 

      Forces between particles

    • B. 

      Size of particles

    • C. 

      Space between particles

    • D. 

      State of the particles

  • 7. 
    A molecule is:
    • A. 

      One or more atoms

    • B. 

      Two or more atoms

    • C. 

      Two or more atoms joined together

    • D. 

      Three or more atoms joined together

  • 8. 
    Atomic radius of atoms is around 10^-10m
    • A. 

      True

    • B. 

      False

  • 9. 
    Mass number is the total number of [Blank] and neutrons. The number of neutrons is the [Blank] number minus the [Blank] number
  • 10. 
    An ion is a [Blank]  [Blank]. (you need to put each word in a separate box)
  • 11. 
    [Blank] worked with Geiger and [Blank] to test the [Blank] model. They fired [Blank] alpha particles at gold [Blank]. Most went through, many changed direction and some came straight back. Rutherford explained this by suggesting atoms have a [Blank] charged nucleus. He also stated that most the mass was in the [Blank] and the electrons orbit like planets.
  • 12. 
    If an atom loses [Blank] it forms a positive [Blank]  If an atom gains [Blank] it forms a negative [Blank]