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Calculations involving unit cell dimensions.

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Problem

Element Z (Atomic mass- 125.25×1024 g) crystallises to form a BCC unit cell.
If the edge length of the unit cell is 500 pm, calculate the density of the element.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
g cm3.
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