1_atomic structure

1_atomic structure

1. structure of an atom

   • proton
     • 1
       • 1
     • relative charge
       • relative mass
   • neutron
     • 0
       • 1
   • electron
     • -1
       • 1/1836

2. electron configuration

   • 2,8,8,2
   • same groups=same number of electrons in outer shell

3. isotopes

   • different atomic forms of the same element.
   • same number of protons and electrons
   • different number of neutrons
   • same atomic number
   • different atomic mass

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