Which of the follwing statements is/are correct for both fluorite and antifluorite structures?

Options

A. Cation is present in alternate `TV_(s)`
B. Anion constitutes lattice.
C. Number of formula unit in one unit cell is `4`.
D. `100%` tetrahedral voids are occupied

Answer

C, D

Explanation

In both fluoruite and antifluorite, `100% TVs` are occupied and `Z_(eff)` (number of formula unit) for both is `4`.