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Periodic Table, Contain groups, All of this react in a similar way because…

- - - - Most used metal
    - - Reddish with metallic lustre
    - - Silvery with a metallic lustre
  - - - Not like group 1 elements
    - - Melting points between 98 and 1535 ºC
    - - Can be built into another shape
    - - Best conductors of electricity
    - - Very heavy
  - - - Buildings
      - Cars
      - Bridges
    - - Chromium and nickel can be mixed to form stainless steel
    - - Steel for radiators
      - Copper for electric wiring
    - - Catalysts speed up reactions
      - Iron catalysts for making ammonia
- - - - Examples
        
        Sodium
        
        Lithium
        
        Potassium
      - Properties
        
        Non typical metals
        
        Good conductors of electricity
        
        Softer than most of the metals
        
        Can be cuted with a knife
        
        Have a lower density than most of other metals
        
        Low melting and boiling points
        
        Chemical properties
        
        Reaction with water
        
        Lithium float and effervesces
        
        Sodium shoots across the water
        
        Potassium melts because of the heat
        
        Hydrogen catches fire
        
        Reaction with oxygen
        
        The metals will burn and they will form oxides
        
        When it's dissolved in water it makes it alkaline.
      - Reactive materials
        
        Because they need to lose an electron
        
        For a stabel outer shell
  - - - Non-metals
      - Non colour gasses
        
        This occur naturally in the air
      - Monatomic
        
        Subsist as single atoms
      - Unreactive
        
        Do not react with anything
        
        Also called noble
        
        Atoms react to gain outer shells for electrons, but atoms of noble gases have already a stable outer shell.
        
        Except from helium
        
        Atoms do not have to react to gain or lose electrons.
      - Physical properties
        
        Gases grow heavier.
        
        Mass of the atom increases.
        
        The boiling point is the sing of the attraction between atoms.
        
        So it's harder to separate them from a gas.
      - Uses of noble gases:
        
        They are safe to use
        
        Properties lead to many different uses
        
        Helium
        
        Much lighter than air
        
        To fill balloons or airships
        
        Will not catch fire
        
        Argon
        
        Filler in lightbulbs
        
        Protect metals that are being welded
        
        Doesn't react with hot
        
        Won´t burn
        
        Neon
        
        Used in advertising
        
        Colour can change if it's mixed with other gases
        
        Xenon
        
        Used for lamps
  - - - Nn metal group
      - Examples
        
        Fluorine
        
        Cholrine
        
        Iodine
        
        Bromine
      - Properties
        
        Physical properties
        
        Boiling point can variate between 184 and -188 ºC
        
        Colored gases
        
        Poisonous
        
        Contain 2 atoms
        
        Chemical properties
        
        Most reactive elements
        
        They need one more atoms to have a stable outer shell
        
        Have a strong drive to react with other elements
        
        React with metals
        
        form compounds called halides
        
        They react in a similar way
        
        Because all their atoms have 7 outer shell electrons.
        
        Reaction with halides
        
        Chlorine
        
        The solution may turn orange