Erbium Nucleus 157Er

      Proton     Neutron   Nuclear Spin Energy State
  157Er     68     89     -3/2      

Erbium Nucleus 157Er Layered View

157Er

 

157Er

Erbium Nucleus 157Er Front View

157Er

Erbium Nucleus 157Er Back View

157Er

Erbium Nucleus 157Er Left View

157Er

Erbium Nucleus 157Er Right View