Ba

Barium-138

Protons (Z)

56

Neutrons (N)

82

Mass number

138

Half-Life

Stable

Abundance

71.7%

Mass

137.905 u

Mass Excess

-88,261.81 keV

Spin

0+

Discovered

1925

Binding energy per nucleon

8,393 keV

Neutron separation energy

8,612 keV

Proton separation energy

9,005 keV

Decay Mode

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