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CHEMICAL BONDING

In this chapter, the concept that all substances in the universe are made up of essentially 109 different types of elements is presented. It is the combinations and recombinations of these 109 "universal" parts that produce the many substances that we see. Of major importance is that many combinations are possible due to the mutual attractions of tyhe outermost valence electrons in each atom to other atoms. These attractions for valence electrons usually produce a filled energy level when two or more atoms bond. It needs to be pointed out that a filled valence level means 8 electrons for elements, except for H and He.

At the end of this chapter, you will be able to:
a) describe chemical bonding,
b) identify the number of valence electrons
in an atom,
c) predict whether an atom is likely to form
bonds,
d) describe ionic, covalent, and metallic
bonding,
e) describe the properties associated with
substances containing each type of
bond.

See a list of terms used in these activities.

Edwin Saramosing

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