87-Fr-203

• Atomic Mass: 203.0010480 ± 0.0002460 amu
• Excess Mass: 976.000 ± 229.000 keV
• Binding Energy: 1569437.000 ± 229.000 keV
• Beta Decay Energy: B- -7603.000 ± 325.000 keV

• Spin: (9/2-)
• Half life: 0.55 S ( 3.6364 % )
• Mode of decay: Electron capture to Rn-203
  • Branch ratio: ~ 5.00
  • Decay energy: 7.200 MeV
• Mode of decay: Alpha to At-199
  • Branch ratio: ~ 95.00
  • Decay energy: 7.280 MeV

• Possible parent nuclides:

  Alpha from Ac-207

Element Fr