What is the relationship between atomic radius, r and the edge (a) of the fcc unit cell ?

Express the relation between atomic radius (r) and edge length (a) in b.c.c. unit cell.

In a close-packed body-centred cubic lattice of potassium, the correct relation between the atomic radius ( r) of potassium and the edge length (a) of the cube is -

What is the relation between unified atomic mass unit (u) and electron unit ?

What is the relation between the edge length (a) and the radius of the constituent particle ( r) of a simple cubic unit cell?

The distance between the nearest neighbours of a body-centred cubic unit cell is equal to 0.866 times the edge length of the unit cell. What is the relation between the edge length and the radius of the constituent particle of this unit cell?

If r = 0, then what is the relationship between a, b and q in a = bq + r ?

Silver crystallises in a face centred cubic unit cell. Each side of the unit cell has a length of 500 pm. Calculate radius of the silver atoms (Assume that the atoms just touch each other on the diagonal across the face of the unit cell i.e. each face atom is touching four atoms)

Sodium crystallises in a body-centred cubic unit cell. (bcc) with edge length 4.29Å . What is the radius of the sodium atom ? What is the length of the body-diagonal of the unit cell?

What is the packing efficiency of bcc lattice? If the diagonal of bcc unit cell be 8sqrt3 find the radius of the atom.

A metal has face-centred cubic unit cell. The radius of an atom of the metal is 1.28Å. What is the edge length of the unit cell?