Periodic Table/Selenium/⁶⁹Se

← 68Se70Se →

⁶⁹Se

Selenium-69

Radioactive· Half-life: 27.4 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

34

Neutrons (N)

35

Mass Number (A)

69

Atomic Mass

68.939415AMU

Spin / Parity

1/2-

Binding E/A

8.252keV

Natural Abundance

Trace / None

Half-life

27.4 s

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

β⁺

100.0%

β⁺p

0.1%

Decay Chain

⁶⁹SeSelenium27.4 s

β⁺100.0%

β⁺p⁶⁸Ge0.05%

⁶⁹AsArsenic15.2 min

β⁺100.0%

⁶⁹GeGermanium1.63 d

β⁺100.0%

⁶⁹GaGalliumSTABLE

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

Other Isotopes of Selenium

63 64 65 66 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

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