89-Ac-221

• Atomic Mass: 221.0155757 ± 0.0000542 amu
• Excess Mass: 14508.712 ± 50.495 keV
• Binding Energy: 1699624.176 ± 50.496 keV
• Beta Decay Energy: B- -2417.928 ± 51.397 keV

• Half life: 52 MS ( 3.8462 % )
• Mode of decay: Alpha to Fr-217
  • Decay energy: 7.780 MeV

• Possible parent nuclides:

  Alpha from Pa-225

Element Ac