The contribution of the particle present at the edge centre of a particular unit cell is :

The contibution of the particle present at the edge centre of a particular unit cell is :

The type of void present at the centre of the ccp unit cell is

When constituent particles are present only on the corner of a unit cell, it is called

A : A particle at the corner of CCP unit cell has (1)/(8)th of its contribution to the unit cell. R : In any space lattice the corner of the unit cell is always shared by the eight unit cell.

The radius of an atom of an element is 55 pm. What is the edge length of the unit cell if it is body-centred cubic?

Assertion :- (A) total number of octahedral voids present in unit cell of cubic close of each packing including the one that is present at the body centre . Is four . Reason :- ( R) Besides the body centre there is one octahedral void present at the centre of each of the six faces of the unit cell and each of which is shared between two adjeccent units cells.

Assertion :- (A) total number of octahedral voids present in unit cell of cubic close of each packing including the one that is present at the body centre . Is four . Reason :- ( R) Besides the body centre there is one octahedral void present at the centre of each of the six faces of the unit cell and each of which is shared between two adjeccent units cells.

The radius of the largest shpere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is represented by 'a')

The relation between atomic radius and edge length 'a' of a body centred cubic unit cell :

The relation between atomic radius and edge length 'a' of a body centred cubic unit cell :