List of top Chemistry Questions on Unit Cells

Find the radius of a BCC molecule having an edge length of \( 2.0 \times 10^{-11} \) m.

The density of a face-centered cubic (FCC) crystal is:

What is the coordination number in a Hexagonal Close-Packed (hcp) structure?

Which of the following statements is incorrect for antibiotics?

Which of the following expressions is correct in case of a C_SCl unit cell (edge length, a) ?

How many atoms are present in hcp per unit cell?

The correct option for the number of body centred unit cells in all $14$ types of Bravais lattice unit cells is :

Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

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

The ratio of number of atoms present in a simple cubic, body centered cubic and face centered cubic structure are, respectively :

If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is

Tetragonal crystal system has the following unit cell dimensions

An element occuring in the bcc structure has $12.08 \times 10^{23}$ unit cells. The total number of atoms of the element in these cells will be

In a compound, atoms of element Y form ccp lattice and those of element X occupy $2/3^{rd}$ of tetrahedral voids. The formula of the compound will be

A compound $M_{p} X_{q}$ has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below. The empirical formula of the compound is

If �a� stands for the edge length of the cubic systems : simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively,

In a close-packed body-centred cubic lattice of potassium, the correct relation between the atomic radius $(r)$ of potassium and the edge-length $(a)$ of the cube is

The number of atoms per unit cell of $bcc$ structure is

An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be

The edge length of a $fcc$ ionic crystal is 508 pm. If the radius of cation is 110 pm, the radius of anion will be

An alloy of copper, silver and gold is found to have copper atom constituting the ccp lattice. If silver atom occupy the edge centres and gold atom is present at body centred, the alloy has a formula

Suppose the mass of a single Ag-atom is $m$. Ag metal crystallises in fcc lattice with unit cell of length $a$. The density of $Ag$ metal in terms of $a$ and $m$ is

The number of tetrahedral and octahedral void per unit cell of cubic closed packed structure is

What is the percentage of free space in body centered cubic unit cell?