C1 - Atoms

C1 - Atoms

1. Atom = Electrons surrounding a nucleus containing protons and neutrons

   • Neutrons = No Charge
     • Relative Charge = 0
   • Protons = Positive Charge
     • Relative Charge = +1
   • Electrons = Negative Charge
     • Relative Charge = -1

2. Atomic Structure

   • Number of Electrons in Atom = Number of Protons in Atom
     • Means Atom has no Overall Charge

3. Elements on the Periodic Table

   • First 20 Atomic Structures

4. Electronic Structure

   • First Shell = 2 Electrons
   • Second Shell = 8 Electrons
   • Third Shell = 8 Electrons

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