Chemistry
Name______________
data__________ period_____
Section 2.4 Metallic Bonds and the Properties of Metals
Adjective
1.
2.
3.
4.
5.
6.
7.
compere
electron sea model?
What is delocalized electron?
What is metallic bond?
How do dose the electron sea model account for the physical properties of metals?
What are characteristics of a metallic bond?
What is alloy?
How can alloy be categorized?
ionic bond (Ex : NaCl)
metallic bond (Ex :Fe)
structure
Definition
ionic bond: The electrostatic force that
of
holds oppositely charged particles
Bond
together in an ionic compound
Name of
model
compere
Melting
and boiling
points
Reason
Different
between
malleable and
ductile
Crystal lattice
Properties of ionic compounds
high
Properties of metals
The crystal break because when apply force the
ions out of alignment then reduse forces of
repulsion break crystal apart
Disslove in
water?
Yas /NO
Conducted
electricty and
heat
Yas /NO
yas
Conduct in
Not conduct in
Reason
Hardeness
and strenght
High/low
Reason
ALLOYS
categorized
Explain Cr or Fe or Ni are more Hardeness and strenght
than Na or Li or K?