Monday, November 8, 2010

There are three divisions for the types of bonds that occur. Explain the three types of bonds and their characteristics. Then explain the reason for their characteristics by use of concepts such as ,metal, nonmetal, metalloid as well as forces of bonding (notice i did not give you the name for that). Make sure that you explain all the characteristics
and you give examples.

Ionic, Covalent, and Metallic Bonds are the three types of chemical bonds.
Ionic bonds come from elements with low electronegativity and they react with elements that have high electronegativity. There is a full transfer of electrons. One example is the reaction of sodium and chlorine. Sodium loses its valence electron to Chlorine, which results in a positively charged sodium ion and a negatively charged chlorine ion.
Ionic bonds form between metals and nonmetals.
When you name simple ionic compounds, the metal is always first, the nonmetal second..
Ionic compounds dissolve easily in water and other polar solvents.
In solution, ionic compounds easily conduct electricity.
Ionic compounds often form crystalline solids with high melting temperatures.
Covalent bonding is when two or more elements share electrons. Most of the time this happens when two nonmetals bond together. A good example of a covalent bond is what occurs between two hydrogen atoms. Each hydrogen atom will want to pick up a second electron which results in forming a covalent bond.
In a metallic bond an atom gets a more secure configuration by sharing the elctrons in its outer shell with many other atoms. Metallic bonds happen in elements where the valence electrons are not tightly bound with the nucleus, which are mostly metals.

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