(A) Number of $A$ atoms at corners $= 8 \times \frac{1}{8} = 1$.Number of $O$ atoms on edges $= 12 \times \frac{1}{4} = 3$.Number of $O$ atoms on face

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(A) Number of $A$ atoms at corners $= 8 \times \frac{1}{8} = 1$.Number of $O$ atoms on edges $= 12 \times \frac{1}{4} = 3$.Number of $O$ atoms on faces $= 6 \times \frac{1}{2} = 3$.Total number of $O$ atoms $= 3 + 3 = 6$.Therefore,the ratio of $A:O$ is $1:6$.The formula of the oxide is $AO_6$.

Class 12 Chemistry Solid State Crystal structure and Coordination number

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An oxide of $A$ crystallizes with $8$ atoms at the corners of the unit cell and $18$ oxygen atoms on the edges and on the faces symmetrically. What is the formula of this oxide?

A
$AO_6$
B
$A_2O_4$
C
$A_3O_6$
D
$A_3O_8$

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Crystal structure and Coordination number

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Potassium fluoride $(KF)$ has an $NaCl$ type structure. What is the distance between $K^{+}$ and $F^{-}$ ions if the unit cell edge length is $a \ cm$?

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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?

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An oxide of $A$ crystallizes with $8$ atoms at the corners of the unit cell and $18$ oxygen atoms on the edges and on the faces symmetrically. What is the formula of this oxide?

Similar Questions

If the radius ratio is in the range of $0.732 - 1.000$,then the coordination number will be

The number of close neighbours in a body-centred cubic $(BCC)$ lattice of identical spheres is:

Which statement is correct for the antifluorite structure of $Na_2O$?

Potassium fluoride $(KF)$ has an $NaCl$ type structure. What is the distance between $K^{+}$ and $F^{-}$ ions if the unit cell edge length is $a \ cm$?

$A$ 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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