Atoms, Compounds and Isotopes

Atoms, Compounds and Isotopes

1. Compounds

   • Chemically bonded
   • Difficult to seperate

2. Sub-atomic particles

   • Atomic Number
     • Number of protons
   • Mass number
     • Number of protons and neutrons
   • Mass
     • Proton - 1
     • Neutron - 1
     • Electron - very small

3. Isotopes

   • Same number of protons, different neutrons
   • Same atomic number, different mass number
   • E.G. Carbon-12 and Carbon-14