The document discusses metallic bonding. Metals form metallic bonds through delocalized valence electrons that are shared between positive metal ions throughout the solid. This bonding allows metals to have properties like luster, malleability, ductility, and being good thermal conductors, as the shared electrons and close nuclei allow for heat transfer and sliding of atoms. Students make models of metallic bonding and relate bonding to metallic properties.

1. METALLIC BONDING

2. Daily Task:
Make a model of a metallic bond
Relate the properties of metals to
the kind of bond they are made of

3. Modified Cabbage Pass Game

4.  Video 1
 Video 2
 Video 3

5.  Group Activity

6.  1. what do you call the outermost electron which is
responsible in metallic bonding?
 Valence electron delocalized electro

7.  Table.3
Metallic
Property
Explanation
Luster Metals are lustrous because
when light strikes the surface
of the metal, the free valence
electrons reflect the light
giving the metal a shiny
appearance

8. Malleability Metals can be
flattened or can be
formed into sheets
when being
hammered because
of the ability of the
metal atoms to slide
over each another
without breaking the
metallic bond.

9. Ductility Metals can be drawn
into fine wire
because of the free
moving electrons
which enable the
metal atoms to slide
over each other.

10. Good thermal
conductor
Metals are good
conductors of heat
because the positive
metal nuclei are
close together and
can easily transfer
the heat. The
motions of the
moving electrons
also transfer heat.

13.  1. What do you think will make bonding
among metals possible?
 Metals tend to lose electrons to become
stable, this property makes metallic
bonding possible the positive atomic nuclei
are surrounded by moving electrons,
which are negatively charged, are then
attracted to the positively charged.

14.  Quixz BEE
 Difficult Round

15.  Choose the letter that corresponds to the correct
answer
 ½ sheet ofpaper
 Choose the letter that corresponds to the correct
answer.
1.Metallic solids are made entirely of
________________
 a.ionic bonds b. covalent bonds

16.  c. metals
 2.Metals tend to ___________electrons easily.
 a. lose
 b. gain
 c. attract
 d. Cannot be determine

17. A: inner
B: middle
C: valence
3.In metal solids, the _____________
electrons form a shared electron cloud.

18.  4. Because the electrons in a metallic
solid are ________, the metal can be
bent into shapes or drawn into wire.
A: mobile
B: stable
C: rigid

19. 5. Why do atoms react with one another
to form chemical bonds?
a. to attain stability
b. to form molecules
c. to form compounds
d. to produce ions

20. For 5 pts. construct a metallic bonding
between Sodium (Na) atoms