Chemistry

Chemistry

1. Elements and Compounds

   • Compounds
     • Compounds are made up of two or more elements.
   • Elements
     • Elements have only one type of atom.
     • They can be found on the periodic table.
   • Mixtures
     • Mixtures are two or more elements put together but they aren't chemically joined.
   • Symbols
     • Each elements have symbols which you use to say which element is which so oxygen = O but there can be more complex ones like potassium = k.

2. Atomic Structure.

   • Mass and Charge
     • Proton
       • Mass = 1
       • Charge = +1
     • Electron
       • Mass =1/2000
       • Charge = -1
     • Neutron
       • Mass = 1
       • Charge = 0