The crystal structure of an ionic compound depends on the
a) sizes of cations and anions
b) ratio of cations to anions
c) masses of cations and anion
d) both a and b

Question

The crystal structure of an ionic compound depends on the 
a) sizes of cations and anions
b) ratio of cations to anions
c) masses of cations and anion
d) both a and b

anonymous · Answer

if you can explain why that would be great >.<

anonymous · Answer

IT depends on both a and b. for specific crystal structures ratio of radii of cation and anion are fixed(Calculated by geometry). It also depends on number of ions(Suppose you take NaCl crystal then there have to be 4 cations and 4 anions in the crystal otherwise you can't form the crystal)

anonymous · Answer

thank you!

anonymous · Answer

No problem :)