Empty space left in HCP in three dimension is

Packing refers to the arrangement of constituent units in such a way that the forces of attraction among the constituent particles is maximum and the constituents occupy the maximum available space. In two dimension there are square close packing and hexagonal close packing, cubic close packing and body-centred cubic packing i) hcp: AB AB AB AB .... arrangement Coordination no. = 12 , % occupied space = 74% ii) ccp: ABC ABC ....... arrangement Coordination no. = 12, % occupied space = 74% iii) bec: 68% space is occupied. Coordination no= 8 17. The empty space left in hcp in three dimensions is

The coordination number of spheres in hcp lattice in three dimension is

The available space occupied by spheres of equal size in three dimensions in both hcp and ccp arrangement is

The available space occupied by spheres of equal size in three dimensions in both hcp and ccp arrangement is

The available space occupied by spheres of equal size in three dimensions in both hcp and ccp arrangement is

Resolve a given vector into three rectangular components (in space i.e. In three dimensions)

The percentage of the available space occupied in a hexagonal close packing of spheres in three dimensions is