5.2 Ionic bonding and structure

Question 1

what is ionic bonding?

Answer 1

the electrostatic force of attraction between oppositely charged ions

Question 2

what structure do ionic compounds form?

Answer 2

giant ionic lattice

Question 3

how is a giant ionic lattice represented?

Answer 3

Question 4

melting and boiling points in ionic lattice

Answer 4

electrostatic force of attraction between oppositely charged ions is very strong
requires a lot of energy to overcome
hence they have high melting and boiling points

Question 5

solubility

Answer 5

ionic lattices are soluble in polar solvents

the greater the charge of the ions, the less soluble an ionic compound is
because there is a stronger attraction between the ions

Question 6

what is required for an ionic lattice to be dissolved?

Answer 6

ionic lattice must be broken down
water molecules must attract and surround the ions

Question 7

electrical conductivity

Answer 7

when solid ionic lattices cannot as the ions are fixed and cannot move so cannot carry a charge

when liquid ionic lattices can conduct electricity as the ions are free to move and and act as mobile charge carriers

therefore ionic compounds are conductors of electricity

Question 8

what type of diagram is used to show ionic bonding?

Answer 8

dot and cross