रिक्तिकाएं की Location in FCC and HCP

Location OF TV and OV in CCP|| HCP|| Class Illustration with Short Tricks

Packing efficiency in SCC and HCP are respectively:-

Zinc sulphide exists in two different structural forms as zinc blende (FCC) and Wurtzite (HCP). What will be the coordination number of cation and anion in both the structures ?

What is common in HCP and FCC unit cell ?

The vacant space in FCC unit cell is

Comparison OF HCP and CCP || Location OF Tetrahedral void and Coordination Number in Close Packing || CCP || HCP || Some very important Results

The packing fractionin fcc and hcp structure is same. Moreover, this is the highest packing fraction of all the possible unit cells with same atoms. Can you explain this ?

What is the coordination number of hcp and ccp?