Ionic Bonding

Question 1

how are ions formed

Answer 1

Ions are formed when electrons transferred from one atom to another

Question 2

ionic bonding

Answer 2

ionic bonding is the strongest attraction between oppositely charged ions

Question 3

factors that affect ionic bonding strength

Answer 3

Ionic charges: greater the charge on an ion, the stronger the ionic bond therefore higher melting/boiling point

ionic radius: smaller ions pack closer together. Electrostatic attractions get weaker with distance. So higher boiling and melting points

Question 4

why does ionic radius increase down a group

Answer 4

because atomic number increases so shielding increases

Question 5

what are isoelectronic atoms

Answer 5

ions with the same electrons but different atoms

Question 6

explain what happens if same number of electrons but different protons

Answer 6

electrons are attracted to the nucleus more strongly pulling and decreasing ionic radius

Question 7

What are physical properties

Answer 7

High melting point obvious due to strong ionic attraction

soluble in polar solvent and can be pulled apart

don’t conduct when solid as no delocalised electrons

cant be shaped as repulsion is too strong so brittle