Please enable JavaScript.

Coggle requires JavaScript to display documents.

GCSE (Physics (Paper 1 (Energy, Electricity : :warning:, Particle model of…

- - - - element
        A substance made of one type of atom only.
      - atom
        The smallest part of an element that can exist.
        
        Models of the atom
        
        Initially model - ball
        
        Plum padding model
        
        Alpha particles - nucleus+ and small
        
        Neils Bohr model - orbits and shells
        
        James Chadwick - neutron in nucleus
        
        Common modern model
        
        Nucleus
        
        Proton +1, 1 mass
        
        Neutron 0, 1 mass
        
        Shells
        
        Electron -1, 1/2000 mass
        
        Calculation
        
        Relative atomic mass
      - compound
        A substance formed by the chemical union of two or more elements.
      - molecule
        A collection of two or more atoms held together by chemical bonds.
    - - Mendeleev - atomic mass order of elements, grouped by similar properties
        
        New element prediction
      - Modern Table
        
        Order by increasing of atomic number (protons number)
        
        in the Group elements have the same number of outer-shell electrons, it`s the base of chemical properties of an element
        
        Elements in the same group have similar chemical properties
      - Groups
        
        Group 1 The Alkali metals
        
        Group 7 The Halogens
        
        Group 0 The Noble gases
    - - Gas
      - Liquid
      - Solid
      - Boiling Point
      - Melting point
      - Bonding
        
        Ionic
        
        Metallic
        
        Covalent
        
        Giant covalent structures
        
        Diamond
        
        Graphite
        
        Graphene
        
        Simple Molecular structure
        
        Fullerenes
        
        Polymers
    - - Metals
      - Non-metals
      - Equations
      - Mass law
  - - - Factors that speed up the Rate of Reaction
        
        temperature
        
        concentration
        
        particle size
        
        use of a catalyst
      - the speed of a chemical reaction may be defined as the change in concentration (mass or volume) of a substance divided by the time interval during which this change is observed