# Inner electrons 60 # Outer electrons 44 # Protons 104 Abundance 18.62 An-Isotope 44:104 Approval Stats BE - Actual 893.09 BE - Nucleon 8587.40 Element Ruthenium Half Life Stable Mass Actual 103.91 Mass Calculated 104.81 Mass H Norm 103.10 Stability Stable
