Protactinium: crystal structure

  • Space group: I4/mmm (Space group number: 139)
  • Structure: tetragonal
  • Cell parameters:
    • a: 392.5 pm
    • b: 392.5 pm
    • c: 323.8 pm
    • α: 90.000°
    • β: 90.000°
    • γ: 90.000°

You may view the structure of protactinium:

protactiniumcrystal structure image (ball and stick style)


W. H. Zachariasen, Acta Crystallogr., 1952, 5, 19.

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protactinium atomic number