If the Ratio of the Radius of the Cation to the Anion

Multiple Choice

If the ratio of the radius of the cation to the anion in a 1:1 compound is 0.800,

A) The compound adopts the rock-salt structure.
B) The coordination number of the cation and anion are 6 and 6.
C) The compound adopts the same structure as calcium fluorite.
D) Each cation occupies one-half of the tetrahedral holes of each anion cube.
E) Each cation occupies all the cubic holes in the center of each anion cube.