A unit cell of BaCl2 (fluorite structure) is made up of

Question

A unit cell of BaCl2 (fluorite structure) is made up of (A) four Ba2+ ions and four Cl- ions (B) four Ba2- ions and eight Cl- ions (C) eight Ba2+ ions and four Cl- ions (D) four Ba2+ ions and six Cl- ions

Tardigrade Admin · Accepted Answer

BaCl 2 has CaF 2 type structure. In BaCl 2, The Ba 2+ ions form the ccp arrangement, i.e., these ions occupy all the corner positions and the center of each face of the cube. The coordination of the compound is 8: 4. In a unit of BaCl 2, there are eight Ba 2+ ions and four Cl -ions.

Q. A unit cell of $B a C l_{2}$ (fluorite structure) is made up of

four $B a^{2 +}$ ions and four $C l^{-}$ ions

four $B a^{2 -}$ ions and eight $C l^{-}$ ions

eight $B a^{2 +}$ ions and four $C l^{-}$ ions

four $B a^{2 +}$ ions and six $C l^{-}$ ions

Q. A unit cell of BaCl2​ (fluorite structure) is made up of

four Ba2+ ions and four Cl− ions

four Ba2− ions and eight Cl− ions

eight Ba2+ ions and four Cl− ions

four Ba2+ ions and six Cl− ions

BaCl2​ has CaF2​ type structure. In BaCl2​, The Ba2+ ions form the ccp arrangement, i.e., these ions occupy all the corner positions and the center of each face of the cube. The coordination of the compound is 8:4. In a unit of BaCl2​, there are eight Ba2+ ions and four Cl−ions.

Q. A unit cell of $B a C l_{2}$ (fluorite structure) is made up of

four $B a^{2 +}$ ions and four $C l^{-}$ ions

four $B a^{2 -}$ ions and eight $C l^{-}$ ions

eight $B a^{2 +}$ ions and four $C l^{-}$ ions

four $B a^{2 +}$ ions and six $C l^{-}$ ions