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What is the coordination number of A^(+)...

What is the coordination number of `A^(+) and B^(-)` ions if the geometry of the ionic crystal (AB) is cubic?

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The coordination number of `A^(+) and B^(-)` ions will be 8.
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CHHAYA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-QUESTIONS-ANSWER ZONE FOR BOARD EXAMINATION
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