Solid State | Relation In Edge Length Of Unit Cell

In a face centred cubic unit cell of close packed atoms, the radius of atom (r) is related to the edge length (a) of the unit cell by the expression

KF has ccp structure. Calculate the radius of the unit cell if the edge length of the unit cell is 400 pm. How many F^(-) ions and octahedral voids are there in the unit cell ?

In the primitie cubic unit cell of closed packed atoms, the radius of atom in terms of edge length (a) of unit cell is

An element crystallizes in a structure having FCC unit cell of an edge length of the unit cell is 286pm, the radius of iron atom is

In a body-centred cubic unit cell of closest packed atoms, the radius of atom in terms of atom is terms of edge length a of the unit cells is

Lithium iodide crystal has a face centred cubic unit cell . If the edge length of the unit cell is 550 pm , determine the ionic radius of I^(-) ion