87-Fr-205

• Atomic Mass: 204.9986640 ± 0.0002550 amu
• Excess Mass: -1244.512 ± 237.486 keV
• Binding Energy: 1587800.941 ± 237.486 keV
• Beta Decay Energy: B- -7007.000 ± 314.000 keV

• Spin: (9/2-)
• Half life: 3.85 S ( 2.5974 % )
• Mode of decay: Alpha to At-201
  • Decay energy: 7.060 MeV
• Mode of decay: Electron capture to Rn-205
  • Branch ratio: < 1.00
  • Decay energy: 6.520 MeV

• Possible parent nuclides:

  Electron capture from Ra-205

  Alpha from Ac-209

Element Fr