4.6 properties of metal and non metals

properties of metal and non metal by idrul nafiz

1. WINTER
Template
01
Are you ready to learn?

2. 02
4.6 PROPERTIES OF
METALS AND NON-
METALS

3. 03
LEARNING OUTCOMES
•List examples of metals and non metals
•List the properties of metals and non-metals
•List the uses of metals and non-metals in daily
life
•Compare and contrast metals and non-metals
based on their physical properties
•Relate the physical properties of metals and
non-metals to their uses in daily life

4. 04METALS AND NON-METALS
•Elements can be classified into metals and
non-metals,
•All metals exist in solid state at room
temperature except mercury (liquid)
•Non-metals exist in solid liquid or gaseous
state at room temperature
•Examples of metals: Iron, aluminum , copper ,
lead
•Examples of non metals : Carbon , Iodine ,
Bromine , Sulphur

5. 05PHYSICAL PROPERTIES OF METALS
AND NON-METALS
•Metals and non-metals can be differentiated
by the following physical properties:
b)Luminosity : Shinny appearance
c)Ductility : Ductile can be stretched out like
long wire
d)Malleability : Can be hammered or rolled into
thin sheet
e)Tensile strength : Support pressure or load

6. WINTER
Template
06ACTIVITY 1 : HANDOUT
METALS DIFFERENCE NON-METALS
Shiny surface Luminosity Dull surface
Ductile Ductility Not ductile
Rolled or hammered
into thin sheet
Malleability Cannot be forged
High Tensile strength Low
Good conductor Heat conductivityPoor conductor
High Melting point and
boiling point
Low
High Density Low
Good conductor Electrical
conductivity
Do not conduct
electricity except
carbon

7. 07
USES OF METALS AND
NON-METALS IN DAILY LIFE
METAL PHYSICAL PROPERTY USE
Iron High tensile strengthRailways track
Aluminum -Light
-Good conductor of
electricity and heat
Kitchen utensils
Copper Ductile and malleableElectrical wire
Tin Does not rust Electroplating of food
cans
Gold Does not rust and
shiny
Jewellery
Lead Ductile
Malleable
Cable casing

8. 08
NON-METAL PHYSICAL PROPERTY USE
Carbon (graphite)-Soft and smooth
-Good conductor
-Lead of pencils
-Electrodes in
electrolysis and dry
cells
Carbon (diamond)-Hard Drill bits for cutting
stone
Neon gas and
krypton
-Poor conductor Lights used for
billboards
Chlorine -Acidic Kill germs in drinking
water

9. 09EXERCISE / HOMEWORK
•1) Give 2 examples each of metals and non-metals
•2) Relate physical properties of metals to their uses
Use of metal Physical property of metal
Drawn out to become a long
wire
Material of I cent coin
Making of cooking utensils
Making of electric wire
Making of bridges
Making of jewellery