1. Lesson #4: Metals and Non Metals
demos
Objective:
Identify the metals and non metals on a periodic table and their characteristics

2. Metals and non metals in the periodic table
7.1 Using Metals
Metals and non metals in the periodic table
88 of the elements are metals
21 of the elements are non metals
The elements on the left of the stepped line are metals.
Please draw this line on your periodic table with a black marker.

3. Use the cards handed out to decide on the best properties for the following situations
7.1 Using Metals
Find 3 essential properties of metals for water pipes
Malleable
Do not react with water or air
Strong
Metal choices…
…copper or lead
More information:
Lead is no longer used for water pipes because it can make poisonous solutions. 3

4. Find 4 essential properties of metals for saucepans
7.1 Using Metals
Find 4 essential properties of metals for saucepans
Good conductors of heat
Do not react with water
Malleable
Strong
Metal choices…
…copper, aluminium or stainless steel 4

5. Find 4 essential properties of metals for jewellery
7.1 Using Metals
Find 4 essential properties of metals for jewellery
Shiny
Hard
Malleable
Do not react with water or air
Metal choices…
…gold, silver, platinum 5

6. Find 3 essential properties of metals for electrical wiring
7.1 Using Metals
Find 3 essential properties of metals for electrical wiring
Ductile
Good conductor of electricity
Do not react with water or air
Metal choices…
…copper, aluminium
More information:
Copper is a better conductor than aluminium 6

7. Find 4 essential properties of metals for long-distance power cables
7.1 Using Metals
Find 4 essential properties of metals for long-distance power cables
Ductile
Good conductors of electricity
Low density
Do not react with water or air
Metal choices…
…copper, aluminium
More information:
Copper is 3 times denser than aluminium 7

8. Find 4 essential properties of metals for aeroplanes
7.1 Using Metals
Find 4 essential properties of metals for aeroplanes
Low density
Malleable
Do not react with water or air
Strong
Metal choice…
…aluminium
More information:
Aluminium does not react with water or air because it forms a protective coating on its surface 8

9. Find 4 essential properties of metals for light bulb filaments
7.1 Using Metals
Find 4 essential properties of metals for light bulb filaments
Ductile
Glow when hot
Very high melting points (so they don’t melt when they glow)
Good conductor of electricity
Metal choice…
…tungsten
More information:
Tungsten has the highest melting point of all metals (3410 ºC) 9

10. Write a short definition of each of the properties
Find 8 properties that most metals have
7.1 Using Metals
Strong
Solid at room temperature (melting point above 25 ºC)
Good conductor of electricity
Good conductor of heat
Shiny (at least when first cut)
Malleable
Ductile
Hard
Write a short definition of each of the properties
(pg 45 science 14 book) 10

11. Non metals

12. - Tomorrow we will have a practical.
- You will work in groups of 4.
- Please bring one hammer per group of 4.
- We will be in Lab 6 (Nelson’s classroom)
- You must have goggles and a lab coat.