Chem - Bond/structure - Ionic

Question 1

Type of structure

Answer 1

Ionic metal - non metal

Question 2

Particles and type of bond

Answer 2

Positive cations and negative anions
Ionic bond

Question 3

Electrical conductivity

Answer 3

Ions
Free to move when liquid or aqueous

Question 3

Melting and boiling point

Answer 3

High
Strong ionic bonds

Question 4

Other properties you should account for

Answer 4

• brittle solids
• If ions are moved along Positive will repel positive and negative will repel negative therefore breaks
• Solubility in water

Question 5

Why do ionic substances have high melting and boiling points

Answer 5

Ionic solids are made of positive ions and negative ions held together by strong electrostatic attractions in a 3D lattice structure. As these attractions are strong they require a large amount of energy to overcome them.

Question 6

Why are ionic substance soluble in water

Answer 6

as the ions are separated from the lattice due to attraction towards the polar water molecules which is sufficient to pull the ions from the lattice. Molecules of non polar are not attracted towards the ions therefore are insoluble.

Question 7

Why do ionic substances shatter

Answer 7

The bonds within ionic solids are directional so they are not malleable or ductile. Instead they are brittle. If opposite charge ions are forced to shift potion then they will repel and shatter.

Question 8

Why can ionic substances conduct electricity in liquid form

Answer 8

in solids ionic substance are in a fixed potion. As the ions cannot move the solid will not conduct. When melted or dissolved the ions become free to move and this allows the liquid to conduct electricity