CHEMISTORY C2

HideShow resource information
  • Created by: Jenny
  • Created on: 24-04-13 19:33
View mindmap
  • CHEMISTRY- C2 Revision
    • Atomic Structure
      • PROTONS:
        • Posotive +
      • Electrons
        • Negative -
      • Neutrons
        • Neutral 0
      • Electron Structure:
        • 2 In first shell
        • 2 in the second shell
        • 16 in the third
    • Ionic Bonds
      • Bonds: non metals and metla
        • Give and Recing electrons
      • During Chemical bonding ions are formed
      • Working it out: the number of charges on an ion formed by a metal is equal to the group number.
        • Non-metals is group number - 8
    • Convalent Bonds
      • Non-metal and Non-metals
      • Share electrons
      • Atoms all contain noble structure
      • New particles formed are Neutral Molocules
      • No Charge
      • Solid, Liquid and gas at room tempreture.
      • Low mealting and boiling point
      • Weak atrtraction
    • Structure of Substance
      • Giant ionic
        • Ions held together by strong attractions
        • Forces equal in all dirrections in lattice
        • Tightly packed ions
        • Strong forces between ions
      • Giant metallic
        • The atoms in metal are in layers
          • Slide over each other, make them possible to bend into shape
        • Metals consits of posotive charge held together by free electrons
        • Strong
        • High melting point
        • Malleable Ibeaten into diffrent shapes)
        • Good conductors of electricity and heat
        • Lustrous
      • Giant Convalent
        • Large network of bonds
        • Strong convalent bonds
        • Hard
        • High melting and boling points
        • Unreactive
        • Diamond
          • Carbon based
          • Each C joins 4 others
          • Very hard
          • No electrical charge
        • Graphite
          • Carbon based
          • Each C joins to 3 others
          • 1 free electron per carbon
          • Conducts electricity
        • Sand (silicon dioxide)
          • Carbon based
          • Each silicon joins 4 oxygen
          • Each oxygen joins 2 silicon
      • Simple Molecular
        • Small molociles containing few atoms
        • Strong convalent bonding
        • Atoms are super strong
        • Molocules farily weak
        • Low melting & boiling point
        • not conduct electricity
        • Little strength
    • Untitled

Comments

No comments have yet been made

Similar resources:

See all resources »See all resources »