Rubidium-86 (Rb-86)

Identity

Protons

37

Neutrons

49

Mass number

86

Mass

85.91 ± 0.21 u

Mass excess

-82.747 MeV

Spin

2-*

Stability

Half-life: 18.6 days

Natural occurrence

Not found in nature

Decays to

• beta minus 100.0 % → Sr-86
• electron capture 0.0052 % → Kr-86