Metals

Question 1

Name the properties of metals.

Answer 1

Found on the left side of the periodic table
From left to right -> metallic character decreases
From top to bottom -> metallic character increases
Metalloids/ semi-metals -> display both metal and non-metal characteristics

Question 2

Name the physical properties of metals.

Answer 2

Metal:

Malleable and ductile
Good conduction of heat and electricity
High melting and boiling point (mercury exception)

Non-metal:
Brittle
Don’t conduct heat and electricity
Low melting and boiling point

Question 3

Describe the reactions of metals.

Answer 3

1. Metal + Oxygen -> Metal Oxide
2. Metal + Acid -> Salt + Hydrogen
3. Metal + Cold Water -> Metal Hydroxide + Hydrogen
4. Metal + Steam -> Metal Oxide + Hydrogen

Question 4

Describe the uses of metals.

Answer 4

Aluminium:

Aeroplane -> Low density, high strength
Overhead cables -> Good conductor of electricity
Saucepans -> Good conductor of heat
Food cans -> Non-toxic
Window frames -> Resistant to corrosion

Copper:

Electrical wires -> Good conductor of electricity
Water pipes -> Malleable, Non-toxic, Unreactive
Cooking pans -> Malleable, Unreactive, Good conductor of heat