88-Ra-221

• Atomic Mass: 221.0139078 ± 0.0000076 amu
• Excess Mass: 12954.995 ± 7.039 keV
• Binding Energy: 1701960.247 ± 7.046 keV
• Beta Decay Energy: B- -1553.717 ± 50.813 keV

• Spin: 5/2+
• Half life: 28 S ( 7.1429 % )
• Mode of decay: Alpha to Rn-217
  • Decay energy: 6.886 MeV
• Mode of decay: 14C
  • Branch ratio: 1E-12
  • Decay energy: 6.886 MeV

• Possible parent nuclides:

  Beta from Fr-221

  Alpha from Th-225

Element Ra