A crystal lattice with alternate `+ve "and "-ve`ions has radius ratio of `0.524`.Its coordination number is

An ionic crystal has r_(c)//r_(a) radius of 0.542 . Its coordination number is

An ionic crystal lattice hase limting value3 of radius ratio as 0*414 to 0*732 , the co-ordination number of its cation is :

An ionic crystal lattice has (r^(+))/(r^(-)) radius ratio of 0.320, its co-ordination number is :

In NaCI lattic the coordination number of CI ion is

In CsCI lattice the coordination number of Cs ion is

In CsCI lattice the coordination number of Cs ion is