# Inner electrons 124 # Outer electrons 81 # Protons 205 Abundance 70.48 An-Isotope 81:205 Approval Stats BE - Actual 1615.07 BE - Nucleon 7878.39 Element Thallium Half Life Stable Mass Actual 204.97 Mass Calculated 206.60 Mass H Norm 203.38 Stability Stable
