Potassium (K) <----- Most reactive
Gold (Au) <--- least reactive
2. Reaction of metals
|Reactivity Series - with the most reactive metal at the top of the series|
3. Reaction of the metal compounds
3.1 Extraction of metals
|Extraction method of different metals from their iron ores|
3.2 Thermal decomposition of metal carbonates (i.e. heating the metal carbonates)
|Thermal stability of different metals carbonates|
4. Displacement reaction of metals
A more reactive metal will displace a less reactive metal.
[i.e. for reaction to occur, the more reactive metal must exist as an element (be by itself), while the less reactive metal must exist as an ionic compound. This is the condition that must be satisfied, for reaction to occur!]
5. Physical Properties of metals
Pure metals are soft because layers of atoms can slide pass each other easily. Alloys are mixtures of metal with other element. Alloys are strong as the different element will disrupt the orderly arrangement of the metal, preventing layers of atoms from sliding pass each other easily.
Metals can conduct electricity because of presence of free moving electrons.
Metals have high melting/ boiling point because of the strong electrostatic forces of attraction between the positive metal cation and negatively charged electrons.
- Quizzes and Tests on metals and rusting