Ionic

Question 0

Definition of ionic bonding

Answer 0

• formation of ions by the gain or loss of electrons
• strong electrostatic force of attraction between oppositely charged ions
• giant ionic lattice is formed
• each ion in lattice surrounded by ions with opposite charge -firmly held

Question 1

Ionic examples

Answer 1

Compounds: non metal to metal eg. NaCl, MgF2, Al2O3

Question 2

Melting and boiling points ionic

Answer 2

High melting and boiling points due to strong electrostatic forces of attraction between the ions which require lots of energy to break.

Question 3

Electrical conductivity in solid ionic

Answer 3

solid: Ions are held strongly in place, therefore are not free to carry charge, do not conduct electricity.

Question 4

Solubility in water ionic

Answer 4

Mostly Soluble

Question 5

Electrical conductivity in molten(liquid) ionic

Answer 5

Ions are free to move and can therefore carry charge and conduct electricity.

Question 6

Electrical conductivity in solution ionic

Answer 6

yes, when dissolved in water the ions are separated by the water molecules and are then free to move in solution and carry charge and therefore conduct electricity

Question 7

Relationship between ionic charge and melting and boiling point of ionic compound

Answer 7

The higher the charge of the ions present, the stronger the electrostatic force of attraction and therefore more energy is needed to break the bond: the higher the charge, the higher the melting point.

Question 8

Describe an ionic crystal

Answer 8

A giant three dimensional lattice structure held together by the attraction between oppositely charged ions (egNaCl)

Question 9

Draw a diagram to represent the positions of the ions in a crystal of sodium chloride

Answer 9

See sheet

Question 10

Ionic diagram example and solid,liquid, gas

Answer 10

See sheet