1. Learning Objective Compare the properties of metals and non-metals
To be able to:
Compare the properties of metals and non-metals
Key Words:
Metal, Non-Metal, Conductor, Oxide

2. The Properties of Metals and Non-Metals
Tuesday, 21 May 2019
The Properties of Metals and Non-Metals
Date and title in books. You need a pen, pencil & ruler.
Starter Activity – 5 minutes
Exam Question

3. Learning Outcomes State where metals are found in the periodic table
Target 9-1
State where metals are found in the periodic table
(F/H)
Target 4-9
Compare the physical properties of metals and non-metals.
(H)
Target 5-9
Compare the chemical properties of metals and non-metals
Extension: Application of Knowledge
Target 8/9
Explain the problems involved in classifying metalloids
Learning Outcomes

4. Metals are found on the left hand side of the periodic table, most elements are metals.

5. Physical Properties Metals Non-Metals
Most have high melting and boiling point
Most have low melting and boiling point
Most are hard
Most are soft
Most are malleable
Most are brittle
Most are ductile
Most are not ductile
Most are sonorous
Most are not sonorous
Most are shiny
Most are dull
Good conductors of heat
Poor conductors of heat
Electrical conductors
Electrical insulators

6. Chemical Properties Metals Non-Metals Most have 1 – 3 outer electrons
Easily lose electrons
Easily gain electrons
Form oxides that are basic
Form oxides that are acidic
Are good reducing agents
Are good oxidizing agents
React with acids to form salts
Do not react with acid
Many form coloured oxides
Most oxides are colourless

7. Would you classify it as a metal or non-metal?
A metalloid is an element that either has a mixture of metal and non-metal properties or has properties in between them. Germanium has these properties: • grey-white shiny solid • melting point 937°C • semi-conductor • reacts with chlorine to form the chloride (GeCl4) which is a liquid molecular compound • germanium oxide reacts with acids to form a salt solution and water. It also reacts with alkalis.
Would you classify it as a metal or non-metal?