Periodic Table/Rubidium/⁸¹Rb

← 80Rb82Rb →

⁸¹Rb

Rubidium-81

Radioactive· Half-life: 4.57 h

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

37

Neutrons (N)

44

Mass Number (A)

81

Atomic Mass

80.918994AMU

Spin / Parity

3/2-

Binding E/A

8.412keV

Natural Abundance

Trace / None

Half-life

4.57 h

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁺

100.0%

Decay Chain

⁸¹RbRubidium4.57 h

β⁺100.0%

⁸¹KrKrypton229 ky

EC100.0%

⁸¹BrBromineSTABLE

3-step decay chain → stable · Primary path shown

Other Isotopes of Rubidium

71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104

← Back to RubidiumData: IAEA NDS · ENSDF