โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Actinium
  • ๐Ÿ‡บ๐Ÿ‡ฆ ะะบั‚ะธะฝั–ะน
  • ๐Ÿ‡จ๐Ÿ‡ณ ้Œ’
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Actinium
  • ๐Ÿ‡ซ๐Ÿ‡ท Actinium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Actinium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืืงื˜ื™ื ื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Attinio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใ‚ขใ‚ฏใƒใƒ‹ใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Actínio
  • ๐Ÿ‡ช๐Ÿ‡ธ Actinio
  • ๐Ÿ‡ธ๐Ÿ‡ช Aktinium
  • ๐Ÿ‡ท๐Ÿ‡บ ะะบั‚ะธะฝะธะน
  • Space group: Fm-3m
  • Space group number: 225
  • Structure: ccp (cubic close-packed)
  • Cell parameters:
    • a: 567 pm
    • b: 567 pm
    • c: 567 pm
    • α: 90.000°
    • β: 90.000°
    • γ: 90.000°

You may view the structure of actinium:

Actinium crystal structure image (ball and stick style)
Actinium crystal structure image (ball and stick style).
Actinium crystal structure image (space filling style)
Actinium crystal structure image (space filling style).

References

J. D. Farr, A. L. Giorgi, M. G. Bowman, and R. K. Money, J. Inorg. Nucl. Chem., 1961, 18, 42.