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Standard XII

Chemistry

Coordination Number

A cube solid ...

Question

A cube solid is made up of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body - centre. What is the formula of the compound ? What are the coordination numbers of P and Q ?

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Solution

Contribution of atoms Q present at 8 corners of the cube

$= \frac{1}{8} \times 8 = 1$

Contribution of atoms P present at the body centre = 1

Therefore, ratio of P and Q = 1 : 1 so, the formula is PQ.

Coordination number of atoms P and Q = 8.

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Coordination Number

Standard XII Chemistry

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A cube solid is made up of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body - centre. What is the formula of the compound ? What are the coordination numbers of P and Q ?

Contribution of atoms Q present at 8 corners of the cube =18×8=1 Contribution of atoms P present at the body centre = 1 Therefore, ratio of P and Q = 1 : 1 so, the formula is PQ. Coordination number of atoms P and Q = 8.

Contribution of atoms Q present at 8 corners of the cube

$= \frac{1}{8} \times 8 = 1$

Contribution of atoms P present at the body centre = 1

Therefore, ratio of P and Q = 1 : 1 so, the formula is PQ.

Coordination number of atoms P and Q = 8.