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CHM 110 Week 2 - Team Assignment - Group Discussion Question

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Select one of the following chemical bonds:
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bonding
Describe the electronic structure of your selected chemical bond in 250 words and
provide an example of this bond.
The chemical bond I have selected is covalent bonding. Covalent bonding, also
known as a molecular bond, is the bond where two elements are bonded via the
sharing of electrons. The terminology of covalent bonding comes from the “co” +
“valent”, which means share of valence. Covalent bonding usually occurs between
non-metals. When two elements, such as carbon and fluorine, the two atoms strive to
share valence electrons so each has eight valence electrons. Since having eight valence
electrons means achieving a noble gas configuration, that is why atoms strive to each
have eight electrons whether that is achieved by sharing. If two atoms have different
electro negativities, one atom (the more electronegative one) will tend to have the
electrons closer to itself than the other. Covalent bonds are named in the order of
increasing group numbers and the last atom is named with its ion name. Depending on
the coefficient, the prefixes such as di-, tri-, etc. are added. For example, N
2
O
4
is
dinitrogen tetroxide.
Covalent bonds are generally found in solid, liquid, and gas form. A common
covalently bonded solid is a diamond; it’s an endless network of covalently bonded
carbons in a tight covalent network/matrix. A common covalently bonded liquid is
ethanol; its formula is C
2
H
6
O and is a liquid at room temperature because ethanol is
has weak intermolecular forces. A common covalently bonded gas is carbon dioxide;
the structural formula is CO
2
. Another common characteristic amongst all covalently
bonded compounds is that the compounds cannot conduct electricity.

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