Types of bonding and their properties

Question 1

Ionic lattice: Mpt/bpt

Answer 1

high mpt - due to strong electrostatic forces between ions –> more energy to break –> higher mpt
higher magnitude of charge = stronger
larger ions = weaker

Question 2

What is meant by:
higher magnitude of charge = stronger
larger ions = weaker

Answer 2

Ions with a higher charge (e.g 2+ instead of 1+) experience a stronger electrostatic force between them.
For the second statement, the larger ions the more the force is spread out, resulting in weaker electrostatic forces, and lower melting points.

Question 3

Ionic lattice: Conductivity

Answer 3

Conducts as (l) or (aq) but not as solid

Question 4

Ionic lattice: particles and forces

Answer 4

cations and anions, strong electrostatic forces

Question 5

discrete molecular: Mpt/bpt

Answer 5

Low - weak IMFS
Bigger molecules = stronger
smaller = weaker

Question 6

discrete = conductivity

Answer 6

no charged particles, dont conduct

Question 7

discrete = solubility

Answer 7

insoluble in water, soluble in oil like substances

Question 8

discrete = molecules and forces

Answer 8

Molecules, strong covalent bonds and weak IMFs

Question 9

Covalent lattice = mpt

Answer 9

high, strong covalent bonds

Question 10

Covalent lattice = conductivity

Answer 10

no charged particles, does not conduct

Question 11

Covalent lattice = solubility

Answer 11

insoluble in all solvents, strong covalent bonds

Question 12

Covalent lattice = particles and forces

Answer 12

Atoms, covalent (strong)

Question 13

Metallic = mpt

Answer 13

high, forces between cations and delocalised electrons

Question 14

Metallic = conductivity

Answer 14

conducts as (s) and (l), electrons can move and carry charge

Question 15

Metallic = solubility

Answer 15

insoluble, some react with water

Question 16

Metallic = particles and forces

Answer 16

cations, delocalised electrons, strong electrostatic forces