# Inner electrons 173 # Outer electrons 115 # Protons 288 An-Isotope 115:288 Approval Stats BE - Actual 0.00 BE - Nucleon 0.00 Decay A 100 Element Moscovium Half Life 0.17 s Mass Actual 288.19 Mass Calculated 290.25 Mass H Norm 285.96 Stability Unstable