Please enable JavaScript.

Coggle requires JavaScript to display documents.

Metals - Coggle Diagram

- - - - the metal found in group 1 of the periodic table are known as the alkali metals, they all react furiously with water
      - when lithium, soduim and potassium react they share similar observations
        
        Effervesence
        
        the solid floats on the water
        
        The solid is propelled around the water
        
        The sold dissapperars as it all reacts with the water
      - When universal indicator is added to the solution the solutions turns dark blue because the metal hydroxides dissolve in the water to form an alkaline solution
      - The further down group 1 you travel the reactions become more and more vigorus
        
        This is because the electrons in the outer shell become further from the nucleus, therefore the attraction from the outer electron and the nucleus is weaker so less energy is needed for the reaction
      - When group 1 metals react it loses its outer shell of electrons so that it has a full outer shell
- - - - Metals less reactive than carbon are extracted with carbon
      - The metals ae displaced from their ores by the carbon, this forms pure metals such as copper
      - This reaction is a redox reaction
    - - therefore electricity is used to extract these metals
      - Metals more reactive than carbon cannot be extracted by chemical methods
- - - - Painting helps block the metal from water meaning that it cannot react. however when the paint is cracked rusting can still occur
      - Sacrificial protection is when a more reactive metal is placed close to the iron, therefore when the iron rusts the more reactive metal will immediately displace the iron. however the block of metal has to be replaced frequently
      - galvanising is when iron is coated in a more reactive metal such as zinc, this means that the zinc acts similar to paint BUT when a crack appears the zinc will also act as sacrificial protection for the iron