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Electrons are shared or exchanged between elements This is an exothermic process (energy is released) Both elements are more stable than they were before the bond formed (have 8 valence electrons)

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The atoms are separated into individual components Endothermic process (takes an input of energy to do this) If I want to break up anything, I need to input energy into the process!!!!

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Bonds formed by the exchange of electrons between a metal and a non-metal Metals give away valence electrons Non-Metals Take the valence electrons Form strong bonds between elements, and strong compounds Based upon the differences in electronegativity between the elements

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Combination of metal-non-metal Two components are required to form any ionic compound 1. Cation 2. Anion

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Have a positive charge Are metal elements Lose electrons Always written first in the compound formula Ex: Sodium Chloride NaCl

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Always are formed from the non-metal element Gain Electrons Negative Charge Last in the compound formula and name Always have an ide ending Ex: Sodium Chloride NaCl

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Formed from a metal/non-metal Strong bonds High melting and High Boiling Point due to bond strength Solids at room temperature (crystalline) Dissolve in water (polar) Conduct a current when dissolved in water but not when solid.

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Formed by the exchange of electrons All elements have a noble gas configuration when the bonding process is finished (8 valence electrons)

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MetalsNon-Metals

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Ionic Solid

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Ionic Solid Dissolving In Water