An element \( \mathrm{A}( \) Atomic weight \( =100) \) having bcc s...

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An element \( \mathrm{A}( \) Atomic weight \( =100) \) having bcc structure has unit cell edge length 400 pm. Calculate the density of \( \mathrm{A} \) and number of unit cells and number of atoms in \( 10 \mathrm{gm} \) of \( \mathrm{A} \).
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