87-Fr-209

• Atomic Mass: 208.9959154 ± 0.0000335 amu
• Excess Mass: -3804.760 ± 31.194 keV
• Binding Energy: 1622646.481 ± 31.196 keV
• Beta Decay Energy: B- -5615.000 ± 128.000 keV

• Spin: 9/2-
• Half life: 50.0 S ( 0.6000 % )
• Mode of decay: Alpha to At-205
  • Branch ratio: 89.00
  • Decay energy: 6.777 MeV
• Mode of decay: Electron capture to Rn-209
  • Branch ratio: 11.00
  • Decay energy: 5.160 MeV

• Possible parent nuclides:

  Electron capture from Ra-209

  Alpha from Ac-213

Element Fr