Covalent bonding
By Cush
Molecular/Ionic compounds


Molecular compounds have very low
boiling and melting points.
Ionic compounds however have very
high boiling and melting points.
Molecular formula


Molecular formulas tell you what the
element is and how many atoms are
present in a molecule.
Ex: Water – H2O
Electron sharing in covalent bonds
This occurs when two or more
elements share electrons. The result
is equally matched atoms leaving
you with a compound such as H2.
Dot Structure

The dots represent the number of
electrons a element has to give away
for compounding.
Double and triple covalent bonds


Double covalent bonds are formed by
the sharing of two pairs of electrons
between two atoms.
Triple covalent bonds are formed by
the sharing of three pairs of
electrons between two atoms.
Dissociation Energy

Dissociation energy is related to the
strength of a covalent bond because
of its constituent atoms.
Oxygen Atoms

The ozone is three oxygen atoms
bonded together. The atoms bond
because there is three of them in the
ozone.
Exceptions to the Octet rule

One exception is to be able to predict
all formulas and to be able to
account for all molecular structures
involving covalent bonds.
VSEPR Theory

The VESPR Theory helps us predict
the shape of individual molecules
based up the extent of electron –pair
electrostatic repulsion.
Sources cited
http://www.utc.edu/Faculty/GretchenPotts/chemistryhelp/compounds.htm
http://science.jrank.org/pages/4403/Molecular-Formula.html
http://www.visionlearning.com/library/module_viewer.php?mid=55
http://www.ehow.com/how-does_4568765_electron-dot-diagramwork_.html
http://www.tutorvista.com/content/chemistry/chemistry-i/chemicalbonding/double-covalent-bond.php
http://www.tutorvista.com/content/chemistry/chemistry-i/chemicalbonding/triple-covalent-bond.php
http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/react2.m
http://instaar.colorado.edu/outreach/ozone-oceans/ozone.html
http://chemed.chem.wisc.edu/chempaths/GenChem-Textbook/Exceptions-to-the-OctetRule-573.html
http://en.wikipedia.org/wiki/VSEPR_theory