Covalent Bonding. Atoms that share a pair of electrons are joined together by a covalent bond. A...
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Transcript of Covalent Bonding. Atoms that share a pair of electrons are joined together by a covalent bond. A...
Covalent Bonding
Atoms that share a pair of electrons are joined together by a covalent bond.
A neutral particle that is composed of atoms joined together by covalent bonds is called a molecule.
Substances that are composed of molecules are called molecular compounds
Most molecular compounds are compose of two or more non-metallic elements.
The atoms of these elements share electrons to obtain the same number of electrons as the closest noble gas.
Lewis Diagrams for covalent bonds
Multiple Bonds
Sometimes, atoms share more than one electron pair between them. Some atoms can form double or even triple covalent bonds. For example, carbon dioxide , where two atoms of oxygen bond with a single atom of carbon
Diatomic molecules are molecules made up of two of the same elements. Only a few of the elements have the capacity to do this
Copy Table 1 pg 202 into your notebooks
Naming binary molecular compounds
These combine through covalent bonds
The elements, except for Hydrogen are written in order of increasing group number
Will end with “ide”
The number of atoms of a given type is designated by a prefix:
Mono – 1 2-di, 3-tri, 4-tetra, 5- penta, 6-hexa,
7-hepta, 8 – octa, 9-nona, 10 -deca
The only exception to the prefixes is the first element has only one atom we don’t use “mono”