Chemistry 1


  • Created by: Bethx8x
  • Created on: 03-01-18 19:04
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  • States of matter
    • Solids
      • Fixed positions in a regular lattice
      • Strong forces of attraction
      • Keep a definite shape and volume
      • Vibrate in their positions
    • Chemistry - C1
      • History of the atom
        • Democritus 400BC
          • Believed that if you keep cutting an object eventually it becomes indivisible
        • JJ Thomson 1897
          • Plum pudding model
          • Negative electrons in a cloud of positive charge
        • Ernest Rutherford 1911
          • Positive Nucleus
          • Nucleus is small dense and positive
            • Positive -  to repel alpha particles
            • Dense - repel high energy particles
            • Small - only 1 in 8000 repelled
          • 1 in 8000 were repelled
          • Gold foil experiment
          • Fired positively charged alpha particles at a thin sheet of gold foil
        • Niels Bohr 1913
          • Negative electrons circle positive nucleus
          • Electrons exist in shells
          • Atoms are mostly free space
      • The atom
        • Proton
          • Mass of 1
          • Charge of +1
        • Neutron
          • Charge of 0
          • Mass of 1
        • Electron
          • Mass of 0.005
          • Charge of -1
        • Molecules
          • Made up of 2 or more atoms
          • Can be made up the same/  different elements
          • Nanoparticles can range from 1nm to 100nm
      • Atoms, Ions and Isotopes
        • Atomic number - how many protons there are
        • Neutrons = mass number - atomic number
        • Mass number is always the bigger number
        • Ions
          • Negative ions form when the gain electrons (more electrons then protons)
          • Positive ions form when they lose electrons (more protons than electrons)
        • Iosotpes
          • Different forms of the same element, which have the same number of protons but different number of neutrons
          • Same mass number but different atomic number
    • Liquids
      • Some force of attraction
      • Free to move but do stick together
      • Don't keep a definite shape
      • Keep the same volume
      • Constantly moving
  • Gases
    • No force of attraction
    • States of matter
      • Solids
        • Fixed positions in a regular lattice
        • Strong forces of attraction
        • Keep a definite shape and volume
        • Vibrate in their positions
      • Chemistry - C1
        • History of the atom
          • Democritus 400BC
            • Believed that if you keep cutting an object eventually it becomes indivisible
          • JJ Thomson 1897
            • Plum pudding model
            • Negative electrons in a cloud of positive charge
          • Ernest Rutherford 1911
            • Positive Nucleus
            • Nucleus is small dense and positive
              • Positive -  to repel alpha particles
              • Dense - repel high energy particles
              • Small - only 1 in 8000 repelled
            • 1 in 8000 were repelled
            • Gold foil experiment
            • Fired positively charged alpha particles at a thin sheet of gold foil
          • Niels Bohr 1913
            • Negative electrons circle positive nucleus
            • Electrons exist in shells
            • Atoms are mostly free space
        • The atom
          • Proton
            • Mass of 1
            • Charge of +1
          • Neutron
            • Charge of 0
            • Mass of 1
          • Electron
            • Mass of 0.005
            • Charge of -1
          • Molecules
            • Made up of 2 or more atoms
            • Can be made up the same/  different elements
            • Nanoparticles can range from 1nm to 100nm
        • Atoms, Ions and Isotopes
          • Atomic number - how many protons there are
          • Neutrons = mass number - atomic number
          • Mass number is always the bigger number
          • Ions
            • Negative ions form when the gain electrons (more electrons then protons)
            • Positive ions form when they lose electrons (more protons than electrons)
          • Iosotpes
            • Different forms of the same element, which have the same number of protons but different number of neutrons
            • Same mass number but different atomic number
      • Liquids
        • Some force of attraction
        • Free to move but do stick together
        • Don't keep a definite shape
        • Keep the same volume
        • Constantly moving
    • Travel in straight lines and only interact when they collide
    • Free to move
    • Don't keep a definite shape or volume
    • When heated the pressure increases
    • Fill any container
  • Dalton 1808
    • Believed there are many different types of atoms
    • Believed in different masses
    • Atoms can join together

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