Ionic bonding and ionic lattices/compounds Flashcards
what is ionic bonding ?
A strong electrostatic attraction between a positive (metal) and negative (non metal) ion that holds the compound together.
what happens to form an ionic bond?
the electrons are transfered
how are the ions arranged in a ionic lattice?
they are in a regular arrangement where positive and negative ions are alternated in each row.
each ion is surrounded by 6 oppositely charged ions.
Do ionic lattices have high boiling and melting points? Why?
They do have high melting and boiling points because the ions are held in fixed positions due to the strong forces of attraction so it takes a lot of energy for them to break
what are the properties of ionic compounds and lattices?
-are crystals
-are solid at room temperature
-have high melting and boiling points
-conduct electricity when molten or dissolved in water
what is another name for an ionic compound?
an ionic lattice
why do lattices only conduct electricity when molten(heated up to a liquid) or dissolved in water?
when molten or dissolved in water the ions are free to move so can carry charge through a liquid.
they dont conduct as solids because the ions are fixed and can not move.
what are ionic compounds?
they are giant lattice structures
what do ionic bonds occur between?
ionic bonds occur between a metal and a non-metal