Periodic Table/Krypton/⁹¹Kr

← 90Kr92Kr →

⁹¹Kr

Krypton-91

Radioactive· Half-life: 8.57 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

36

Neutrons (N)

55

Mass Number (A)

91

Atomic Mass

90.923806AMU

Spin / Parity

5/2+

Binding E/A

8.340keV

Natural Abundance

Trace / None

Half-life

8.57 s

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

β⁻

100.0%

β⁻n

Decay Chain

⁹¹KrKrypton8.57 s

β⁻100.0%

β⁻n⁹⁰Rb

⁹¹RbRubidium58.2 s

β⁻100.0%

β⁻n⁹⁰Sr

⁹¹SrStrontium9.65 h

β⁻100.0%

⁹¹YYttrium58.5 d

β⁻100.0%

⁹¹ZrZirconiumSTABLE

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

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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