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How Many Calcium, Titanium, and Oxygen Ions Are There in the Perovskite

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How many calcium, titanium, And oxygen ions are there in the perovskite unit cell shown below? How many calcium, titanium, And oxygen ions are there in the perovskite unit cell shown below?   A)  1 Ca<sup>2+</sup>, 2 Ti<sup>4+</sup>, and 3 O<sup>2-</sup> B)  1 Ca<sup>2+</sup>, 1 Ti<sup>4+</sup>, and 6 O<sup>2-</sup> C)  1 Ca<sup>2+</sup>, 4 Ti<sup>4+</sup>, and 6 O<sup>2-</sup> D)  1 Ca<sup>2+</sup>, 1 Ti<sup>4+</sup>, and 3 O<sup>2-</sup> E)  1 Ca<sup>2+</sup>, 2 Ti<sup>4+</sup>, and 6 O<sup>2-</sup>


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