Solid State Tes...

Density of Nickel ($$M=59$$) metal is $$8.9\ g/cc$$ and it is known to crystallize in cubic unit cell. If edge length of the unit cell is $$3.5\ \mathring { A } $$, atomic radius of the metal is?

Tungsten ($$M=184$$) crystallises in cubic lattice structures and its density is $$19.26\ g/cc$$. If edge length of the unit cell is $$3.165\ \mathring { A } $$, the type of unit cell is?

A certain ionic compound is formed in the Spinel structure in nature in which  $${O^{2 - }}$$ ionic constitute CCP lattice $${A^{2 + }}$$ ions occupy  $$1/{8^{th}}$$ of the  tetrahedral voids and  $$B{^{3 + }}$$ ions occupy $$1/2$$ of the octahedral voids . Find out total +ve charge contained in two-unit cell of given ionic structure.

Packing efficiency of $$NaCl$$ is almost

The type of defect in $$NaCl$$ crystal will be -

How many unit cells are present in $$0.1$$ moles of rock salt?

In normal spinel structure there is a closed packed array of $${O}^{2-}$$ ions. The trivalent cations are present in:

Select the incorrect statement:

Among the following, the compound with high lattice energy is 

Which pair is correct order of lattice energy?