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Structure of atom_1

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Transcript

  • 1. The Structure of The Atom
    Chapter 2
  • 2. Matter and Substance
    Matter is anything that has mass and occupies space.
    Made up of tiny and discrete particles (atoms, molecules and ions)
    The smallest particle, which can participate in a chemical reaction
    Atoms
    Group of two or more atoms which are chemically bonded together
    Molecules
    Ions
    Positively or negatively charged particles
  • 3.
  • 4. Kinetic theory of matter
    Explain the energy and forces between particles in matter
    Three basic assumptions:
    Matter is made up of _____ particles.
    The tiny particles are in constant ______.
    When the temperature is _______, the particles gain more kinetic energy and move in greater speeds.
    tiny
    speed
    higher
  • 5. Diffusion
    A process in which the particles of substance move and _________ the spaces in between the particles of another substance.
    Occurs in gases, _______ and solids.
    occupy
    liquids
  • 6. Diffusion – Brownian Motion
    The movement of particles in all _______ caused by the _______ among the particles or between particles and the container wall.
    direction
    collision
  • 7. Diffusion – Brownian Motion
    Examples:
    Movement of smoke particles in air
    Movement of pollen grains in water
    Pouring concentrated sugar solution in water
  • 8. Diffusion
  • 9. Diffusion in solid, liquid and gas
  • 10. Diffusion in solid, liquid and gas
  • 11. SOLID
    forces
    manner
    low
  • 12. LIQUID
    weaker
    solid
    manner
    solid
  • 13. GAS
    Weak
    far
    high
    random
  • 14.
  • 15. Inter-conversion of matter
    Heating
    Gas
    Cooling
    E
    F
    C
    B
    A
    Liquid
    Solid
    D
  • 16. Changes in the state of matter
  • 17. Inter-conversion process
    Melting
    A
    Boiling
    B
    Sublimation
    C
    D
    Freezing
    E
    Condensation
    F
    Sublimation
  • 18.
  • 19. Inter-conversion Processes
  • 20.
  • 21. The heating curve of a substance
    Temperature (°C)
    F
    Boiling point
    D
    E
    Melting point
    C
    B
    A
    Time (Min)
  • 22. The cooling curve of a substance
    Temperature (°C)
    P
    Boiling point
    R
    Q
    Freezing point
    T
    S
    U
    Time (Min)