Atomic Structure

Atomic Structure

1. Electrons

   • Circle nucleus
   • Negatively charged
     • -1
   • Follow paths
     • Shells
     • Orbitals
   • Radius equal to radius of outermost shell
   • No mass

2. Nucleus

   • Contains
     • Protons
       • Possative charge
         • +1
       • Number of normally is same as number of electrons
       • Determines Atomic Number
       • Number of determines different elements
     • Neutrons
       • No charge
     • Number of protons & neutrons is mass

3. Are electrically neutral

   • Because protons & neutrons are equal