Solid State

\(\mathrm{NaCl}\) has face centred structure with edge length equal to \(361 \mathrm{~pm}\). The radius is

In a normal spinel type structure, the oxide ions are arranged in ccp, whereas \(1 / 8\) tetrahedral holes are occupied by \(\mathrm{Zn}^{2+}\) ions and \(50 \%\) of octahedral holes are occupied by \(\mathrm{Fe}^{3+}\) ions. The formula of...

Which defect leads to decrease in the density of crystal?

How many atoms are present in hcp per unit cell?

Which of the following show both Frenkel and Schottky defect?

Doping of silicon (Si) with indium (In) leads to the formation of

The vacant space in bcc lattice cell is

How much part of any corner atom actually belongs to a particular unit cell?

Sodium metal crystallises in a body centred cubic lattice with a unit cell edge of 4.29 \(\mathop A\limits^o\). The radius of sodium atom is

Graphite is a soft solid lubricant extremely
difficult to melt. The reason for this anomalous
behaviour is that, graphite