KF has NaCl structure. What is the distance between `K^(+)` and `F^(-)` in KF, if the density is `2.48g cm^(-3)`?

KF has NaCl structure. What is the distance between K^(+) and F^(-) in KF, if its density is 2.48 g cm^(-3) ?

KF has NaCl structure. What is the distance between K^(+) and F^(-) in KF, if the density is 1.5g cm^(-3) ?

KF has NaCl structure. What is the distance between K^(+) and F^(-) in KF, if the density is 1.5g cm^(-3) ?

Lead (II) sulphide crystal has NaCl structure. What is the distance betweeen Pd^(2+) and S^(2-) in PhS if its density is 12.7 " g cm^(-3) ? (At .mass of Pb = 207)

KF has NaCl structure. What is the distance between K^+ and F^- if density is 2.48 g cm^-3 ?