CaS exists in a cubic close packed arrangement of S2- ions in which Ca2+ ions occupy 1/2 of the available tetrahedral holes. How many Ca 2+and S2- ions are contained in the unit cell?

S2â=8Ã18+6Ã12=4 No. of Ca2+=12Ã8=4

CaS exists in a cubic close packed arrangement of S2- ions in which Ca2+ ions occupy 1/2 of the available tetrahedral holes. How many Ca 2+and S2- ions are contained in the unit cell?

S2â=8Ã18+6Ã12=4 No. of Ca2+=12Ã8=4

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CaS exists in a cubic close packed arrangement of S^2- ions in which Ca²⁺ ions occupy 1/2 of the available tetrahedral holes. How many Ca ²⁺and S^2- ions are contained in the unit cell?

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1, 1

2, 4

4,4

4,2

answer is C.

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$S^{2 â} = 8 Ã \frac{1}{8} + 6 Ã \frac{1}{2} = 4 No. of {Ca}^{2 +} = \frac{1}{2} Ã 8 = 4$

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CaS exists in a cubic close packed arrangement of S2- ions in which Ca2+ ions occupy 1/2 of the available tetrahedral holes. How many Ca 2+and S2- ions are contained in the unit cell?

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CaS exists in a cubic close packed arrangement of S^2- ions in which Ca²⁺ ions occupy 1/2 of the available tetrahedral holes. How many Ca ²⁺and S^2- ions are contained in the unit cell?