Electron transfer
        atom loses an electron(s)
            - loses a negative charge(s)
            - is left with a postive charge[cat ion]
                    Lithium    atomic # 3 = # of protons = 3  and # of electrons = 3
                                    ion   protons still 3  however electrons is now only 2
                                            an postive charge left unbalanced
       atom gains an electron(s)
            - gains a negative charge(s)
            - now has a negative charge[an ion]
                  Fluorine    atomic # 9 = # of protons = 9  and # of electrons = 9
                                    ion   protons still 9  however electrons is now only 8
                                            an extra electron unbalances protons
 

Forming an Ionic Bond
    the attraction between two oppositely charged ions
        - compounds are electrically neutral

from VisionLearning

                Na⁺[cat ion]                            Cl^-[an ion]

^{Polyatomic Ions
    definition:  Ions with more than one atom}
 
        CO₃^{-2  carbonate ion}

        ^CaCO₃  ^{calcium carbonate}

^{Naming Ionic Compounds
        NaCl,   MgO,
    The postively charged ion is named first.
        Sodium,     Magnesium,        Sodium}

        ^{The negatively charged ion changes it's name to "ide"
        Chlorine to Chloride,  Oxygen to Oxide}

    ^{Polyatomic
        NaHCO}₃
        ^{- same name for positive ion     Sodium
        - same name for negative ion    bi-carbon
                with the 3rd element oxygen changes it's name
                    oxide}

^{Properties of ionic compounds
    Crystal shape
      - the negative ion and positive ion fit together in a repeating     pattern to form the crystal lattice or structure.}
  

   ^{High melting points
        - tends to be solid at room temperature
       -particles need to have enough energy to overcome the         attractive forces for them to break away from each other.}

^{Electrical conductivity
        -dissolved in water
            - solution conducts electricity
                flow of electric charges
                slide past each other
         -high temperature (melting of ionic compounds)
                product the same result of electrical flow}