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Niobium forms bcc structure the density of niobium is 8.55 g/cm3 and length of unit cell edge

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by in Chapter1:Rotational Dynamics 10.8k views

Niobium forms bcc structure the density of niobium is 8.55 g/cm3  and length of unit cell edge is 330.6 pm . How many atoms and units cells are present in 0.5 g of niobium ?

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the correct answer is 1.62 × 1021  

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