ch 19 study guide 2015

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Chapter 19 Study Guide
Name:______________________________________________Date:_______________Period:____________
Chemical Bonding
What makes an atom stable?
How many valence electrons are in the following elements?
Li____
Mg____
B____
C____
N____
S____
F____
Ne____
What type of atoms do not hold on to their valence electrons tightly?
He____
What types of atoms do?
What element exerts the strongest pull on electrons?
What is a chemical formula?
What does the subscript mean?
What does the coefficient mean?
How many atoms of each element are represented in these formulas:
3H2O
2C2H4O2
CH3C10H20CO2H
Ionic Bonding
How is an ion formed?
What is a cation?
How is it formed?
What is an anion?
How is it formed?
Describe the steps in ionic bonding.
An ionic bond is between a _____________________________ and a _____________________________.
What is the oxidation number of an atom?
What does “neutral in charge” mean?
Chapter 19 Study Guide
What is a binary ionic compound? Give a common example that can be found in any kitchen.
Write the names for the following ionic compounds:
lithium and sulfur
Na3P
oxygen + calcium
aluminum and oxygen
Write the chemical formulas for the following ionic compounds:
sodium and bromine
nitrogen and beryllium
magnesium and sulfur
phosphorus and aluminum
Draw the Lewis dot structures for the following compounds:
KCl
Aluminum and sulfur
NiP
nitrogen and magnesium
Covalent Bonding
What is covalent bonding?
A covalent bond is between a ______________________ and a ________________________.
How many valence electrons do most of the nonmetals need to be stable?
What are the exceptions?
Draw the Lewis structures for the following molecules:
H2O
CH4
N2
CH2O
C2H4
O2
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