A Solid Has A Structure In Which ‘W’ Atoms Are Located At The Corner Of A Cubic Lattice ‘O’ Atoms At The Centre Of Edge And Na Atoms At The Centre Of The Cube. The Formula For The Compound Is

A solid is made of two elements X and Z. the atoms Z are in ccp arrangement while the atom X occupy all the tetrahedral sites. What is the formula of the compound?

An element occurring in the bcc structure has 12.08 × 10²³ unit cells. The total number of atoms of the elements in these cells will be

The number of sphere contained (i) in one body centred cubic unit cell and (ii) in one face centred cubic unit cell, is

CsBr crystal has bcc structure. It has an edge length of 4.3. the shortest interionic distance between Cs⁺ and Br ^–  ions is

The number of atoms in 100 g of an fcc crystal with density,

d = 10g/ cm³ and cell edge equal to 100 pm, is equal to

The number of unit cell in 58.5 g of NaCl is nearly

Analysis shows that an oxide ore of nickel has formula Ni_0.98O_1.00. The percentage of nickel as Ni³⁺ ions is nearly

In orthorhombic, the value of a, b and c are respectively 4.2, 8.6 and8.3. given the molecular mass of the solute is 155 g mol^-1 and that of density is 3.3 g/cc, the number of formula units per unit cell is

Ferrous oxide has a cubic structure and each edge of the unit cell is 5.0. Assuming density of the oxide as 4.0 g/cm^-3, then the number of Fe²⁺ and O^2- ions present in each unit cell will be

In a solid ‘AB’ having the NaCl structure, ‘A’ atoms occupy the corners of the cubic unit cell. If all the face – centred atoms along one of the axes are removed thye the resultant stoichiometry of the solid is