Atomic structure

Atomic structure

1. atomic mass

2. atomic number

3. isotopes

4. the nucleus

   • protons
   • neutrons

5. outside the nucleus

6. radioactivity

   • isotopes
     • each or two forms of the same element
   • gamma
     • beta
       • alpha
         • mass=4
         • charge=2+
         • ionisation strength=very ionising
       • charge=1
       • mass=-1
     • chare=0
     • mass=0