Periodic Table/Zirconium/⁸¹Zr

← 80Zr82Zr →

⁸¹Zr

Zirconium-81

Radioactive· Half-life: 5.50 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

40

Neutrons (N)

41

Mass Number (A)

81

Atomic Mass

80.938245AMU

Spin / Parity

3/2-

Binding E/A

8.143keV

Natural Abundance

Trace / None

Half-life

5.50 s

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

β⁺

100.0%

β⁺p

0.1%

Decay Chain

⁸¹ZrZirconium5.50 s

β⁺100.0%

β⁺p⁸⁰Sr0.12%

⁸¹YYttrium1.17 min

β⁺100.0%

⁸¹SrStrontium22.3 min

β⁺100.0%

⁸¹RbRubidium4.57 h

β⁺100.0%

⁸¹KrKrypton229 ky

EC100.0%

⁸¹BrBromineSTABLE

6-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Zirconium

77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113

← Back to ZirconiumData: IAEA NDS · ENSDF