Please enable JavaScript.

Coggle requires JavaScript to display documents.

Inorganic chemistry - Coggle Diagram

- - - - Chlorine - explosive in sunlight, slow in dark
      - Bromine - reacts only at 300 degrees centigrade with a platinum catalyst
      - Iodine - very slow, reversible reaction at 300 degrees centigrade with a platinum catalyst
- - - - all react with oxygen in the air to form white basic metal oxides
      - Alkalis become more reactive as the atomic mass increases
        
        this is as a result of the elements gaining more outer shells with electrons in as the atomic mass increases, and the further the lone electron is away from the nucleus, the more easily it is lost in reactions
    - - soft - can be cut with a knife
        
        softness increases with reactivity
      - good conductors of heat and electricity
      - low density - Na, K and Li all float on water
      - low melting and boiling points
  - - - sodium (Na)
        
        burns with a yellow flame
      - lithium (Li)
        
        burns with a red flame
      - potassium (K)
        
        burns with a lilac flame
    - - lithium (Li)
        
        moves around on the surface, fizzing
      - potassium (K)
        
        sets on fire with a lilac flame and moves around on the surface
      - sodium (Na)
        
        melts into a ball, and moves around the surface fizzing
      - an exothermic reaction
      - rubidium (R)
        
        explodes with sparks
      - Caesium
        
        violent explosion