1. Tardigrade
  2. Question
  3. Chemistry
  4. The contribution of particle at the edge centre to a particular unit cell is.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The contribution of particle at the edge centre to a particular unit cell is.

KCETKCET 2016The Solid State

Solution:

An atom at the edge centre is shared by four unit cells in the lattice and hence, contributes only $\frac{1}{4}$ th to a particular unit cell

Also, there are 12 edge centres in a unit cell. Thus, total number of atoms at the edge centres per unit cell.

$-12 \times \frac{1}{4}-3$