Atomic Structure and the periodic table

Atomic Structure and the periodic table

1. Atoms

   • Electrons
     • Charge=-1
     • Almost zero mass
   • Neutrons
     • Charge=0
     • Mass=1
   • Protons
     • Charge=+1
     • Mass=1
   • Nucleus
     • Contains protons and neutrons
     • Surrounded by electrons
     • Positive charge

2. Elements

   • Only have one type of atom
   • Different number of protons, neutrons and eletrons

3. The Periodic Table

   • Organised in atomic number