Unit 4B Chemical Bonds
Practice Problems I
Name:
Date:
For each of the following statements, write “I” for ionic, “C” for covalent and “M” for metallic.
C
electrons are shared
M
electrons delocalized
electrons are transferred
I
I
crystal lattice
M
luster
C
nonconductors in the solid, molten, and dissolved state
M
malleable and ductile
I
high melting and boiling points
M
volatile liquids and gases
M
weaker forces between atoms
I
hard — difficult to crush
What is the difference between a cation and an anion?
cations happen to lose electrons
cation:
anions gain electrons
anion:
In a polar covalent bond, the electrons are shared unequally
are shared equally
.
. In a nonpolar covalent bond, the electrons
What type of bond will form between the following pairs of atoms?
H and F
Ionic
Na and O
CI and CI
non polar covalent
Ionic
What type of bond will form between the following pairs of atoms?
Fe and S
Polar
Si and O
Ionic
Mg and O
Ionic
Unit 4B Chemical Bonds Practice Problems 1
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