Ionic Bonding

Question 1

Definition

Ionic Bonding

Answer 1

The electrostatic force of attraction between positively charged ions and negatively charged ions/oppositely charged ions

Question 2

Melting and Boiling of Ionic compounds

Answer 2

High melting and boiling point because of its strong electrostatic forces of attraction between the oppositely charged ions which requires a large amount of energy to break

Question 3

Conductivity of Ionic compounds

Answer 3

• Poor conductivity as a solid because ions are in a fixed position and therefore there are no mobile charge carriers present.
• Good conductivity when dissolved in water or when melted to form a liquid because the ionic lattice has been broken and the ions are free to move as mobile charge carriers.

Question 4

Solubility of Ionic compounds

Answer 4

Soluble in polar solvents such as water because ions in ionic compounds are strongly attracted to polar water molecules and bind to them

Question 5

Strenght of solubility of Ionic compounds

Answer 5

Ionic compounds containing ions with higher charges (e.g +2 ions) are less soluble in water than ionic compounds containing ions with lower charges (e.g. +1 ions).
This is because the ionic attraction between the ions is too strong for water to break down the ionic lattice.