The radius of a metal atom is taken as half the nearest metal`-` metal distance in a metallic crystal
B
One tetrahedral void per atom is present in `h.c.p.` structure
C
In the fluorite structure `(CaF_(2)),` the `Ca^(2+)` ions are located at the lattice points and the fluoride ions fill all the tetrahedral holes in the `c.c.p.` crystal
D
In the antifluorite structure `(Li_(2)O,Rb_(2)S)` the cations are located at the lattice points and anions fill the tetrahedral holdes in the `c.c.p.` structure.
