Solid State Tes...

Which of the following patterns has void fraction of $$0.26$$?

Which of the following about the above structure is incorrect?

In an ionic compound $$A^{+}X^{-}$$, the radii of $$A^{+}$$ and $$X^{-}$$ ions are 1.0 pm and 2.0pm, respectively. The volume of the unit cell of the crystal AX will be :

The radius of a calcium ion is 94 pm and of the oxide, the ion is 146 pm. The possible crystal structure of calcium oxide will be:- 

In case of cubic system, the number of types of space lattices?

How many unit cell of $$NaCl$$ are present in $$7.02\ gm$$ of $$NaCl?$$

What is the number of ions per $$cc$$ in the crystal of $$NaCl$$ at normal temperature?

Which of the following have maximum lattice energy :

A metallic element crystallizes into a lattice containing a  sequence of layers of AB AB AB....Any packing of spheres leaves out voids in the lattice. The empty space in percentage by volume in this lattice is: 

In $$CaF_2$$ lattice coordination number of $$Ca^{+2}$$ & $$F^-$$ is :