Transcript Draw the correct Lewis dot structure for CH2O

Types of Bonding and Lewis
Structures
Quiz on Tuesday
Describe the structure of metallic
bonding.
•Positive
metallic ions surrounded by electrons.
Example of Metallic
Bonding
Potassium bromide forms a crystal
lattice structure. What type of bonding
would you expect it have?

Ionic
If a substance dissolves in water
and makes a solution that
conducts electricity, what types of
bonds do you expect hold it
together?
•Ionic; forms
ions in solution to make it an electrolyte
What type of bonding must exist if a
substance can conduct electricity dry?
Why?

Metallic; the delocalized electrons are able to
flow freely around the positive metal ions
If a substance melts in your hands, what
type of bonds do you expect to hold it
together?

Covalent (polar and non-polar); covalently
bonded substances have low melting points
Which of these elements would
make a covalent bond with
nitrogen?
Al
Mg
•C; non-metal
Ba
C
with non-metal bonding (also similar
electronegativity)
Which of these elements would
make an ionic bond with
potassium?
Mg
•N
N
Sr
Cl
or Cl; metal with non-metal bond (also difference in
electronegativities is relatively large)
Which of these elements would
make an ionic bond with chlorine?
O
•Li; metal
F
Li
Xe
with non-metal bond (also difference in
electronegativities is relatively large)
What type of bond exists between
chlorine (EN = 3.0) and bromine (EN
= 2.8)?
A) Non-Polar Covalent
B) Polar Covalent
C) Ionic
D) Metallic
•Non-polar
covalent; both elements are non-metals with
their difference in electronegativity being less than 0.5
What type of bond exists between
nitrogen (EN = 3.0) and hydrogen
(EN = 2.1)?
A) Non-Polar Covalent
B) Polar Covalent
C) Ionic
D) Metallic
•Polar
covalent; both elements are non-metals with their
difference in electronegativity being between 0.5 and 1.7
What type of bond exists between
nitrogen (EN = 3.0) and hydrogen
(EN = 2.1)
•Polar
covalent; both elements are non-metals with their
difference in electronegativity being between 0.5 and 1.7
Draw the correct Lewis dot
structure for CH2O and give its
molecular geometry
Trigonal planar
Draw the correct Lewis dot
structure for SCl2 and give its
molecular geometry
Bent
Draw the correct Lewis Dot Structure
for O2
Draw the correct Lewis Dot Structure
for O2
Can you draw Lewis structures for
ionic compounds?
Can you draw Lewis structures for
ionic compounds?

No, only covalent molecules. Lewis
structures show SHARED electrons. Ionic
bonds transfer their electrons.
Draw the orbital notation for Sulfur.