CHEM 120: Introduction to
Inorganic Chemistry
Chapters Covered and Test
dates
Chapter 4: Structure and
properties of ionic and covalent compounds
Chapter 4. Structure and
Properties of Ionic and Covalent Compounds
Start learning the
formulas and the names and charges of the ions found in table
"Why have we been so..."
Compound
Lewis (dot) Symbols
Slide 9
Lewis symbols for A
groups
Remember the octet rule
from chapter 3
Slide 12
Ionic bonding
"Ionic compounds are
formed between"
"An ionic bond is
the..."
Typical ionic reactions
with Lewis structures
What about Li and S?
What about Ca and O
What about Ca and N?
Covalent bonding
Slide 21
"A reminder:"
Covalent bond formation
What about F2
or Cl2?
Slide 25
Polar covalent bonding
and electronegativity
Polar covalent bonds
Slide 28
Slide 29
Electronegativity
Slide 31
Electronegativity
differences
Electronegativity
differences
"If the difference
is >"
Classify as ionic or
covalent
"Which bond is the
most..."
Slide 37
Chemical formulas
Writing formulas for
ionic cmpds
Predict the formulas for
the cmpd formed btn
Slide 41
Slide 42
Slide 43
Slide 44
Polyatomic ions Table
Slide 46
"These polyatomic
ions also form..."
"So the formula for
the..."
"Ionic cmpds do not
exist..."
Given name, write formula
Naming ionic cmpds
Name
Cations with more than
one charge
Given name, write formula
To name covalent cmpds
"Prefix"
"CO"
Write formula
Covalent cmpds
Comparison of properties
of ionic and covalent cmpds
Comparison continued
Comparison continued
Comparison continued
"Learn the names,"
Writing Lewis structures
for covalent species
"if the species is a..."
"3."
"Write the skeletal
structure and..."
"Examples"
Slide 70
Multiple bonds
Slide 72
Resonance
Slide 74
"Each resonance
structure contributes to..."
"Draw resonance
structures for SO3..."
Exceptions to Octet Rule
Let’s do Lewis structures
for
3D structure of species
VSEPR theory
VSEPR
Shapes of molecules (3D)
"II."
Steps in applying VSEPR
"3."
VSEPR: valence shell electron
pair
repulsion
Slide 87
Slide 88
Slide 89
Slide 90
Table 4.5 (changed)
Predict geometry
Polar vs nonpolar cmpds
Slide 94
Polar molecules
"II."
Which of these are polar?
Properties based on
electronic structure and molecular geometry
Solubility
Melting and boiling
points
Which have higher melting
(boiling pts)