Period 3

Structure and bonding of sodium?

Metallic (metal ions and delocalised electrons)

Structure and bonding of Magnesium?

Metallic (metal ions and delocalised electrons)

Structure and bonding of Aluminium?

Metallic (metal ions and delocalised electrons)

Structure and bonding of Silicon?

Giant covalent lattice between atoms

Structure and bonding of Phosphorus?

Simple molecular with intermolecular forces

Structure and bonding of Sulfur?

Simple molecular with intermolecular forces

Structure and bonding of Chlorine?

Simple molecular with intermolecular forces

Reaction of water and sodium?

2Na + 2H2O —> 2NaOH +H2

• fizzing

• Floating

• Yellow flame

Reaction of water and Magnesium (gas and liquid)?

Gas = Mg + H2O(g) —> MgO + H2

Liquid = Mg + 2H2O(l) —> Mg(OH)2 + H2

• very slow

• White flame

• White powder

Reaction of water and Aluminium?

No reaction

Reaction of water and silicon?

No reaction

Reaction of water and Phosphorus?

No reaction

Reaction of water and Sulfur?

No reaction

Reaction of water and Chlorine?

Cl2 + H2O <—> HCl + HOCl

• dissolves

• Very pale green solution

Reaction of oxygen and sodium?

4Na + O2 —> 2Na2O

• white powder

• Yellow flame

Reaction of oxygen and Magnesium?

2Mg + O2 —> 2MgO

• white flame

• White powder

Reaction of oxygen and Aluminium?

4Al + 3O2 —> 2Al2O3

• white flame

• White powder

Reaction of oxygen and Silicon?

Si + O2 —> SiO2

• white flame

• White powder

Reaction of oxygen and Phosphorus?

P4 + SO2 —> P4O10

• white flame

• White powder

Reaction of oxygen and Sulfur?

S + O2 —> SO2

• blue flame

• Choking gas (Acidic)

Reaction of oxygen and Chlorine?

No reaction

Sodium oxide structure?

Ionic

Solid

Magnesium oxide structure?

Ionic

Solid

Aluminium oxide structure?

Ionic

Solid

Silicon dioxide structure?

Giant covalent lattice with strong covalent bonds

Solid

Phosphorus oxide structure?

Molecular

Solid

Sulfur dioxide structure?

Molecular

Gas

Sulfur trioxide structure?

Molecular

Liquid