Periodic Table/Krypton/⁸¹Kr

← 80Kr82Kr →

⁸¹Kr

Krypton-81

Radioactive· Half-life: 229 ky

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

36

Neutrons (N)

45

Mass Number (A)

81

Atomic Mass

80.916590AMU

Spin / Parity

7/2+

Binding E/A

8.456keV

Natural Abundance

Trace / None

Half-life

229 ky

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

EC

100.0%

Decay Chain

⁸¹KrKrypton229 ky

EC100.0%

⁸¹BrBromineSTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Krypton

67 68 69 70 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

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