Francium Nucleus 231Fr

      Proton     Neutron   Nuclear Spin Energy State
  231Fr     87     144     1/2      

Francium Nucleus 231Fr Layered View

231Fr

 

231Fr

Francium Nucleus 231Fr Front View

231Fr

Francium Nucleus 231Fr Back View

231Fr

Francium Nucleus 231Fr Left View

231Fr

Francium Nucleus 231Fr Right View