PROPERTIES OF IONIC COMPOUNDS:

Question 1

When ions react and arrange themselves what is the shape called?

Answer 1

= Giant ionic lattices
= every ion is attracted to every other oppositley charged ions- electrostatic

Question 2

Why do ionic compounds have a high melting and boiling point?

Answer 2

= large amount of energy needed to break the electrostatic forces of attraction

Question 3

Why are ionic compounds soluable in polar solvents?

Answer 3

= water molecules surround the ions
= can overcome the electrostatic forces of attraction between the ions
= can dissolve in polar solvent

Question 4

What happens if the charges on the ions increases?

Answer 4

= Solubility decreases
= water molecules cannot overcome the electrostatic forces of attractions between the ions

Question 5

Why do ionic compounds not conduct electricity if they are solid?

Answer 5

= Ions are locked into place- electrostatic forces of attractions
= cannot carry charge

Question 6

Why do ionic compounds conduct electricity when molten or melted?

Answer 6

= ions are not locked into place
= can carry charge
=

Question 7

What is the coordination number usually for ionic lattices?

Answer 7

= 6