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12 December, 04:27

Iron (fe has a density of 7.87 g/cm3 and crystallizes in a body-centered cubic structure. what is the atomic radius of iron?

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  1. 12 December, 04:33
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    The formula for the theoretical density of a solid crystal is

    d = n M / V A

    where

    d is the density

    M is the molar mass

    V is the volume of the cell

    A is the Avogadro's number

    Subsituting

    7.87 = 1 (56) / (2r√2) ³ (6.022x10^23)

    Solve for r
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