Periodic Table/Strontium/⁸¹Sr

← 80Sr82Sr →

⁸¹Sr

Strontium-81

Radioactive· Half-life: 22.3 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

38

Neutrons (N)

43

Mass Number (A)

81

Atomic Mass

80.923211AMU

Spin / Parity

1/2-

Binding E/A

8.348keV

Natural Abundance

Trace / None

Half-life

22.3 min

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

β⁺

100.0%

Decay Chain

⁸¹SrStrontium22.3 min

β⁺100.0%

⁸¹RbRubidium4.57 h

β⁺100.0%

⁸¹KrKrypton229 ky

EC100.0%

⁸¹BrBromineSTABLE

4-step decay chain → stable · Primary path shown

Other Isotopes of Strontium

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 99 100 101 102 103 104 105 106 107

← Back to StrontiumData: IAEA NDS · ENSDF