-+Ionic+Bonds+and+Ionic+Compounds

toc = = =- ionic compounds=

=- ionic bonds=

= = =- formula units=

=- chemical formulas= -- Used to describe the types of atoms and their numbers in an element or compound. -- Atoms of each element are represented by one or two different letters.

Here's an example:

Wasn't that fun!?

Here's a video that describes the actual process: media type="youtube" key="3K5V3kxxlI8" height="390" width="480"

=- properties of ionic compounds=


 * All Ionic Compounds form Crystals**



Ionic compounds are also known as salts in the majority of cases. They are usually hard and brittle, conduct electricity when molten or dissolved, and have high melting and boiling points. Most are soluble in polar solvents such as water. Also they have a crystal structure.

 In Ionic Compounds, one of the ions has a positive charge (cation) and the other has a negative charge (anion). Cations are usually metal atoms and anions are either nonmetals or polyatomic ions (ions with more than one atom).   The properties of Ionic Compounds are the following:  Physical State  Melting and Boiling Points  Solubility  Electrical Conductivity  Ionic Reactions  <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">Crystalline Character

= = =- coordination number= When Ions make ionic bonds, they form ionic crystals. Coordination number is the number of ions that surround the ion of the other charge in an ionic crystal. For example, the coordination number for Cesium Chloride is 8. This means that for every cesium cation, there are 8 chlorine anions surrounding it, and vice versa. Below is a picture to demonstrate this.