ionic compounds and lattice Flashcards
how are ionic compounds formed? what does it result in?
when a metal transfers their outer electrons to a non-metal. it results in oppositely charged ions
what is an ionic lattice?
giant structures that are held together by strong electrostatic forces between oppositely charged ions
what are ionic lattices made from?
ions
is the structure of an ionic lattice regular or irregular?
regular
what is the appearance of an ionic lattice?
white solids and regular crystals
what happens to the ions when ionic compounds dissolve in water?
they are free to move from heir fixed positions
is it easy or hard for ionic compounds to dissolve in water?
easy
do ionic substances have low or high melting and boiling points?
high
can electricity be conducted when ionic compounds are solid? why?
no, the ions are not mobile
can electricity be conducted when ionic compounds are molten/melted? why?
yes, the ions are mobile
can electricity be conducted when ionic compounds are dissolved as a solution? why?
yes, they are mobile
how much energy are needed to break an ionic bond? why?
a lot, they have strong ionic bonds/ forces
what 2 things are needed for a substance to conduct electricity?
charged and mobile ions
what does mobile mean?
free to move
describe the structure and bonding in sodium chloride. [4 marks]
It is an ionic lattice with positively and negatively charged particles. Arranged regularly. Na+ and Cl-. There is electrostatic force of attraction between oppositely charged ions.
