Periodic Table/Yttrium/⁸¹Y

← 80Y82Y →

⁸¹Y

Yttrium-81

Radioactive· Half-life: 1.17 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

39

Neutrons (N)

42

Mass Number (A)

81

Atomic Mass

80.929454AMU

Spin / Parity

5/2+

Binding E/A

8.260keV

Natural Abundance

Trace / None

Half-life

1.17 min

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

β⁺

100.0%

Decay Chain

⁸¹YYttrium1.17 min

β⁺100.0%

⁸¹SrStrontium22.3 min

β⁺100.0%

⁸¹RbRubidium4.57 h

β⁺100.0%

⁸¹KrKrypton229 ky

EC100.0%

⁸¹BrBromineSTABLE

5-step decay chain → stable · Primary path shown

Other Isotopes of Yttrium

75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109

← Back to YttriumData: IAEA NDS · ENSDF