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Lesson #4: Metals and Non Metals

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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.


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