List of top Chemistry Questions on Unit Cells

A compound is formed by \(A\) (cations), \(B\) (cations) and \(O\) (anions). Atoms of \(O\) form a ccp lattice. Atoms of \(A\) occupy \(50\%\) of octahedral voids and atoms of \(B\) occupy \(25\%\) of tetrahedral voids. What is the molecular formula of the compound?

Given below are statements
Statement I: Unit cell in a lattice has six characteristic parameters
Statement II: In fcc lattice, the total number of atoms/ions per unit cell is 4

Metals A and B crystallize in "simple cubic" and "face centered cubic" lattice respectively. The number of metal atoms A and B per unit cell are respectively:

Calculate the number of atoms present per unit cell if product of density and volume of unit cell is 1.8 × 10\(^{-22}\) g. Mass of an atom = 4.5 × 10\(^{-23}\) g

Calculate the volume of fcc unit cell in cm\(^3\) if void volume of it is \( 4.16 \times 10^{-24} \) cm\(^3\).

Calculate the number of unit cells in 1 cm$^3$ volume of metal if unit cell edge length is $1.25 \times 10^{-8}$ cm.

Calculate the total volume occupied by all particles in fcc unit cell if volume of unit cell is $6.4 \times 10^{-23}$ cm$^3$.

What is the total number of unit cells shared by each corner particle of bcc unit cell?

Calculate the edge length of bcc unit cell if radius of a particle present in it is 186 pm.

Calculate the radius of an atom of an element in pm if it forms bcc unit cell structure having edge length $4.3\times10^{-8}$ cm.

Calculate the number of unit cells in $1~cm^{3}$ of an element if unit cell edge length is $2.0\times10^{-8}$ cm.

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

Calculate the volume occupied by particle in simple cubic unit cell if volume of unit cell is $5.5 \times 10^{-22} \text{ cm}^3$.

Calculate the molar mass of an element having density $19.2 \text{ g cm}^{-3}$ if it forms fcc structure $\left[ \text{a}^3 \times \text{N}_{\text{A}} = 40 \text{ cm}^3 \text{ mol}^{-1} \right]$}

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) ?

A cubic lattice has atoms of A at the body centre, atoms of B at the corners of the cube and atoms C at all the face centres. What is its formula?

How many atoms are present in hcp per unit cell?

What is the atomic radius of polonium if it crystallises in a simple cubic structure with edge length of unit cell 336 pm?

An element with BCC structure has edge length of 500 pm. If it's density is 4 g cm$^{-3}$, find atomic mass of the element?

How many particles per unit cell are present in BCC structure?