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An element A and B constiture bcc type crystalline structure. Element A occupies body centre position and B is at the corners of cube. What is the formula of the compound ? What are the coordination numbers of A and B? |
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Answer» Correct Answer - Formula of the compound =AB Coordination number of A= 8 coordination number of B= 8 Given : Crystalline structure is bcc type. Atoms A are at 8 corners and atom B is at body centre. `:. ` Number of atoms of A in a unit cell `= (1)/(8) xx 8=1` Number of atom B in unit cell = 1 Since unit cell contains one atom each of A and B the formula of the compound is AB. The coordination number of the an atom A at corner is 8. The coordination number of an atom B at body centre is 8. |
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