properties of ionic compounds Flashcards
what do ionic compounds form?
giant ionic lattice
what surrounds every positive ion?
a negative ion
what shape are giant ionic lattices?
3 dimensional
are the forces strong or weak?
very strong
what are the forces called?
electrostatic forces (hold the negative and positive ions in place)
what directions do ionic bonds act in?
all directions
do ionic compounds have high or low melting and boiling points?
they have very high melting and boiling points
what do the strong electrostatic forces need to break?
they require a great deal of heat energy to break
what happens when they are heated?
the particles vibrate (when they vibrate with enough energy the electrostatic forces melt and the solid breaks)
why can’t ionic compounds conduct electricity when solid?
because the ions can’t move and they’re locked in place by the strong electrostatic forces
why can ionic compounds conduct electricity when they are melted or dissolved in water?
because the ions can move and carry the charge