1. Intermediate 2 Chemistry Unit 3(c)
Metals
Intermediate 2 Chemistry
Unit 3(c)

2. True or False All metals conduct electricity All metals are shiny
All metals have high melting points
There are only two metal elements which are not silver in colour
All metals have high densities

4. Gold

5. Silver

6. Nickel

7. Sodium

8. Mercury

9. Bronze

10. Questions about metals
Why are metals important?
Where do metals come from?
Which metal is the most common on Earth?
How reactive are metals?
What physical properties do metals have?

11. Physical properties of metals
Property
Details
State
All solid at room temperature except Hg
Group 1 and 2 metals have low mp compared to Transition metals
Electrical conductivity
All conduct when solid or liquid
Thermal conductivity
All are good thermal conductors
Malleability
All are malleable
Density
Compare Groups 1, 2 and Transition metals in Data Booklet

12. What makes metals different?
Why is gold used in jewellery but copper is not?
Why is iron used in construction?
Why is aluminium used in electrical cabling and aircrafts?
Why is sodium not used in construction?
Why are steel and bronze not included in the Periodic Table

13. Reactions of metals Metal + Oxygen Metal + Water Metal + Acid
3 important reactions of metals:
Metal + Oxygen
Metal oxide
Metal + Water
Metal hydroxide + hydrogen
Metal + Acid
Salt + hydrogen

14. Practice
Write as a word equation, chemical equation, balance, add state symbols:
Sodium + water
Magnesium + nitric acid
Aluminium + oxygen
Iron + hydrochloric acid
Calcium + water

15. Reactivity Series Metals are not all equally reactive
The less reactive metals are found uncombined (i.e. as the free element) in the earth’s crust
The more reactive metals are found combined (i.e. as a compound) called an ore
To get the metal element it must be extracted from the ore by a chemical reaction

17. Ores