8.4: Body Centered Packing

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The Model for Polonium Crystal Structure

Discussion -

O   O  |  If we cut the cube along a face diagonal, the arrangement of
  O    |  atoms look like the diagram on the left.
O   O  |     Thus, bd = 4 R

If the edge of the cube has a length represented by a, and if the radius of the atoms is R, express a as a function of R.

Hint: \(a = \dfrac{4 R}{\sqrt3}\)

Discussion -
a = ^{4 R} / _√3

Contributors and Attributions

Chung (Peter) Chieh (Professor Emeritus, Chemistry @ University of Waterloo)