Chemistry Topic 1

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Created by
olivia

Cards (17)

  • Metallic Bonding ?

    Metals + Metals
    Properties of metals
    Involves delocalised electrons
  • Metals properties
    1. Shiny
    2. Dense
    3. Malleable
    4. Silver
    5. Ductile
    6. Strong
    7. Good conducts of heat + electricity
  • What are metals
    1. Tightly packed
    2. Metal ions
    3. Sea of electrons called delocalised electrons
  • Malleable
    Able to shape without breaking.
  • Ionic bonding
    Non-metals + metals
    Solids
    Make full outer shells by bonding together
    Donating + accepting
  • Metals ______ electrons
    Lose
  • Non-metals _____ electrons
    Gain
  • Ionic compounds
    The whole thing of Ionic bonding. Extended into brackets.
  • Simple molecules
    Non-metal + Non-metal
    Liquids and gases
    Form covalent bonds
    Low melting + boiling points
  • Covalent bond
    Atoms share pairs of electrons
  • Giant Covalent
    Strong covalent bonds
    High melting+ boiling points
    e.g. diamond, graphite
  • Nanoscience ?

    The study of particles that have a size of 1 to 100nm
  • Disadvantages of Nanoscience
    Unknown side effects
  • Smart material
    Reacts to change in environment the change is reversible.
  • what are shape memory alloys/polymers
    Can return to original shape when heated.
  • Alloys
    Metals that are very strong so layers can not slide
  • Uses of Nanoparticles
    Kills bacteria
    Used in medicines