Periodic table

Ruthenium-101 (Ru-101)

Identity

Protons
44
Neutrons
57
Mass number
101
Mass
100.91 ± 0.44 u
Mass excess
-87.958 MeV
Spin
5/2+*

Stability

stable

Natural occurrence

17.06 % of ruthenium

Produced by

All isotopes of ruthenium