want solution of this question Que:- A unit cell consists of a cube in which anions (B) are present at - Chemistry - The Solid State

Question

want solution of this question
Que:- A unit cell consists of a cube in which anions (B) are
present at each corner and cations (A) at the center of the
alternate faces of the unit cell what is the simplest formula of
the compound?

Kumar Sarang · Accepted Answer

Contribution of an atom placed at corner of the unit cell is
1/8
Therefore the total no of anion (B) which are present in a unit
cell is = 1/8 *total no of corners= (1/8)* 8 =1 anion
Contribution of an atom placed at face centre = 1/2
When cations are placed at the alternative faces the total no of
face centred atoms are 2 as shown below in :
<img alt="" width="105" height="105" src=
"https://s3mn%20mnimgs%20com/img/shared/discuss_editlive/3950778/2013_09_10_00_58_56/endcentred_1172715424629675569%20png">
therefore total no of cations are = 1/2 * 2= 1
thus the formula of compound is AB

want solution of this question Que:- A unit cell consists of a cube in which anions (B) are present at each corner and cations (A) at the center of the alternate faces of the unit cell. what is the simplest formula of the compound?

want solution of this question

Que:- A unit cell consists of a cube in which anions (B) are present at each corner and cations (A) at the center of the alternate faces of the unit cell. what is the simplest formula of the compound?