(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

Medium

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

The coordination number of $Ba^{2+}$ ion in Barium fluoride $(BaF_2)$ is $8$. What must be the coordination number of fluoride ion $(F^{-})$?

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In $FCC$ lattice,alternate tetrahedral voids are occupied in which of the following?

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The intermetallic compound $LiAg$ crystallizes in a cubic lattice in which both lithium and silver have a coordination number of $8$. The crystal class is

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The structure of $Na_2O$ crystal is

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What is the minimum value of the radius ratio ${r_ + }/{r_ - }$ for $NaCl$ to ensure that anion-anion contact does not occur?

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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

The coordination number of $Ba^{2+}$ ion in Barium fluoride $(BaF_2)$ is $8$. What must be the coordination number of fluoride ion $(F^{-})$?

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