(B) In the given unit cell,$X$ atoms are at the corners and face centers (typical $ccp$ arrangement).Number of $X$ atoms $= (8 \text{ corners} \times

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(B) In the given unit cell,$X$ atoms are at the corners and face centers (typical $ccp$ arrangement).Number of $X$ atoms $= (8 \text{ corners} \times \frac{1}{8}) + (6 \text{ face centers} \times \frac{1}{2}) = 1 + 3 = 4$.$M$ atoms are located at the edges and the body center.Number of $M$ atoms $= (4 \text{ edges} \times \frac{1}{4}) + (1 \text{ body center} \times 1) = 1 + 1 = 2$.Ratio of $M:X = 2:4 = 1:2$.Therefore,the empirical formula is $MX_2$.

Class 12 Chemistry Solid State Crystal structure and Coordination number

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$A$ compound $M_pX_q$ has a cubic close packing $(ccp)$ arrangement of $X$. Its unit cell structure is shown below. The empirical formula of the compound is

IIT 2012 All IIT

A
$MX$
B
$MX_2$
C
$M_2X$
D
$M_5X_{14}$

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Crystal structure and Coordination number

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IIT 2012 Paper All IIT years →

What is the coordination number of a particle in $fcc$ structure?

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$CsBr$ crystal has $bcc$ structure. It has an edge length of $4.3 \ \mathring{A}$. The shortest interionic distance between $Cs^{+}$ and $Br^{-}$ ions is ................ $\mathring{A}$.

MediumIIT 1995

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Select the correct expression for determining the Packing Fraction $(P.F.)$ of an $NaCl$ unit cell (assume ideal),if ions along an edge diagonal are absent.

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$A$ and $B$ atoms in a crystal are positioned at the corners and face centers respectively. What is the formula of the crystal?

EasyAP EAMCET 2022

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The ratio of the number of atoms present in a simple cubic,body-centered cubic,and face-centered cubic unit cell is,respectively:

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$A$ compound $M_pX_q$ has a cubic close packing $(ccp)$ arrangement of $X$. Its unit cell structure is shown below. The empirical formula of the compound is

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What is the coordination number of a particle in $fcc$ structure?

$CsBr$ crystal has $bcc$ structure. It has an edge length of $4.3 \ \mathring{A}$. The shortest interionic distance between $Cs^{+}$ and $Br^{-}$ ions is ................ $\mathring{A}$.

Select the correct expression for determining the Packing Fraction $(P.F.)$ of an $NaCl$ unit cell (assume ideal),if ions along an edge diagonal are absent.

$A$ and $B$ atoms in a crystal are positioned at the corners and face centers respectively. What is the formula of the crystal?

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