A1 - Ionic Bonding Flashcards
What is the definition of ionic bonding?
Strong electrostatic attraction between oppositely charged ions
Can solid ionic compounds conduct electricity?
No, Ions are not free to move.
When can ionic compounds conduct electricity?
When molten or dissolved in solution as the ions are free to move.
What crystal structure does an ionic compound have?
Giant ionic lattice
Describe the melting and boiling points of ionic compounds.
High melting and boiling points as there is a strong electrostatic attraction between oppositely charged ions.
What is the formula of sodium fluoride?
NaF
What is the formula of magnesium chloride?
MgCl2
What is the formula of sodium hydroxide?
NaOH
what is the formula of magnesium oxide?
MgO
What is the formula of sodium sulfate?
Na2SO4
What is the formula of aluminum oxide?
Al2O3
What is the formula of Calcium nitrate?
Ca(NO3)2
What affects the strength of ionic bonding?
Size of the ion and charge of the ion.
Which compound has the higher boiling point, MgCl2 or CaCl2?
MgCl2.
Mg2+ is a smaller ion than Ca2+ so has a stronger attraction to Cl-
Which compound has the higher boiling point, NaF or NaCl?
NaF
F- is a smaller ion than Cl- so has a stronger attraction to Na+.
Which compound has the higher boiling/ point, CaO or SrO
CaO
Ca2+ is a smaller ion than Sr2+ so has a stronger attraction to O2-.
Which compound has the higher boiling point, MgCl2 or CaCl2?
Which compound has the higher boiling point, Na2O or Na2S?
Na2O
O2- is a smaller ion than S2- so has a stronger attraction to Na+.
Which compound has the higher boiling point, MgF2 or NaF
MgF2
Mg2+ is a smaller ion with a higher charge than \Na+ so has a stronger attraction to F-.
In your exercise book: Draw the dot and cross diagram for MgO
In your exercise book: Draw the dot and cross diagram for MgCl2
In your exercise book: Draw the dot and cross diagram for NaF
