Caesium - ₅₅Cs: crystal structures

Space group: Im-3m
Space group number: 229
Structure: bcc (body-centred cubic)
Cell parameters:
- a: 614.1 pm
- b: 614.1 pm
- c: 614.1 pm
- α: 90.000°
- β: 90.000°
- γ: 90.000°

You may view the structure of caesium:

interactively (best, but the page will take longer to load) or
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Caesium crystal structure image (ball and stick style) — Caesium crystal structure image (ball and stick style).

Caesium crystal structure image (space filling style) — Caesium crystal structure image (space filling style).

The closest Cs-Cs separation is 532 nm implying a caesium metallic radius of 266 nm.

References

C. E. Weir, G. J. Piermarini, and S. Block, J. Chem. Phys., 1971, 54, 2768.