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Periodic Table, are represented in - Coggle Diagram

- - - - atoms are composed by
        
        a nucleus
        
        this contains
        
        neutrons
        
        the amount of neutrons in an atom make an atom to be radioactive or stable
        
        protons
        
        defines the atomic number and the electric charge
        
        are positively charged
        
        the addition of neutrons and protons define the mass number
        
        energy levels
        
        this contains
        
        electrons
        
        are negatively charged and defines the atoms charge
        
        the valence electrons are the electrons that are in the outermost energy level
        
        the amount of valence electrons can be represented also in an electron dot diagram
      - the interaction of atoms is a bond
      - A compound is a type of molecule in which a substance is formed when two or more atoms of different elements bond together
        
        an ion is an atom or molecule with an electric charge due to the loss or gain of electrons which defines the electric charge
      - an isotope is an alternative form of an element
- - - - from left to right across
        
        periods