Table of Contents
Week 1 | English Grammar
Week 2 | English Grammar
Week 3 | English Grammar
Week 4| English Grammar
Week 5| English Grammar
Week 6| English Grammar
Week 7| English Grammar
Week 8| English Grammar
Week 9| English Grammar
Week 10| English Grammar
Week 11| English Grammar
Week 12| English Grammar
Week 13| English Grammar
Metals and Non-metals
Metals and non-metals both exhibit very different qualities, which is something you could expect seeing as how they’re on opposite sides of the periodic table.
|Good conductors of heat||Poor conductors of heat|
|Good conductors of electricity||Poor conductors of electricity|
|Sonorous (high sound when tapped)||Dull sounds|
|Shiny appearance||Dull appearance|
|High melting and boiling points||Low melting and boiling points|
|Mostly solids at room temperature*||Solids, liquids and gasses at room temperature|
|Malleable and ductile||Brittle|
Mercury is the only metal which is in liquid form at room temperature
Examples of uses of metals and non-metals
- Jewellery due to their hard, shiny appearance
- Cooking pots due to heat conduction
- Wires because they are malleable, ductile and conduct electricity
- Building equipment due to strength
- Insulation of wires due to poor electrical conduction
- Handles of pans due to poor heat conduction
Reactions with oxygen
Metals will react with oxygen to form a basic oxide. These reactions can happen when metals are just expose to air.A basic oxide could react with an acid and neutralise it. If it was dissolved in water, it would form an alkaline solution .
This is how the word formula for the reaction is set out.Non-metals will also react with oxygen, but they will form an acidic oxide. Usually, this happens by burning the non-metal in air. This compound could react with a base and neutralise it. In water, it would form an acidic solution.
Metal oxides are usually solids at room temperature, whereas non-metal oxides tend to be gasses at room temperature.
KS3 Chemistry Questions –Metals and Non-metals
1. Which is a good conductor of heat and electricity?
2. Which characteristically has a dull appearance?
3. What will be formed when a metal reacts with oxygen?
a. Basic hydroxide
b. Acidic hydroxide
c. Basic oxide
d. Acidic oxide
4. Which side of the periodic table are metals found on?
5. If a basic oxide were to dissolve in water, what would be required to neutralise it?
a. An alkaline solution
b. An acidic solution
c. Pure water
d. It is already neutral
1. How can a non-metal be made to react with oxygen?
2. Name three uses of metals and why they are good in that role
3. Why would non-metals not make very good wires?
4. What does sonorous mean?