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Covalent Bonds and Molecules
A covalent bond is a form of chemical bonding that is done by sharing pairs of valence electrons between two molecules. It is formed when two atoms have a mutual attraction to a pair of electrons.
Types of Covalent Bonds
1 = Mono (Optional) 2= Di 3= Tri 4= Tetra 5= Penta 6= Hexa
Subscript Wording
Definition:
There are three primary types of covalent bonds: Single bonds, double bonds, and triple bonds. Double and triple bonds are known as multiple bonds. There are very rare cases when it goes higher than a triple bond, however they exist.
A combining capacity is the amount of valence electrons that are needed for a full shell. It is found by finding the amount of electrens need for a full valence electron shell. You can also identify the combining capacity by looking at the periodic table and identifying the distance of that element from the final period. For example, Oxygen's carrying capacity would be two.
Combining Capacity
Atoms Combined: Molecules
When two or more atoms create a covalent bond, they create a molecule. The definition of a molecule is a group of atoms held together by covalent bonds.
A 3D Triple Bond
To determine a formula for the chemical name is quite simple, however it takes a bit of reasoning. You simply substitute the element name with its symbol, and add a subscript, which can be identified from the chart to the right. The positive chemical symbol always comes first. (e.g. CO2 = Carbon Oxide2 (2=di) = Carbon Dioxide
Determining a chemical name for a formula is quite easy, you look at the chemical symbols and write the element name, however with the second element you must end it with -ide ( e.g. Carbon Dioxide). There is, however, an addittion in some cases. When you list a metal, you must list the amount valence electrons because they vary. Fe2O is Iron Oxide
Molecular Diagram
To begin, you must put the chemical symbols alongside each other and put dots around them to represent valence electrons. Put a straight line from one atom to the other to represent two electrons being shared. These electrons are called bonding pairs, the rest of the valence electrons are nonbonding pairs.
Formula to Chemical Name
Chemical Name to Formula
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yoyo22 added this comment 2009-12-08 13:49:49-06:00
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