Periodic Table/Selenium/⁶⁷Se

← 66Se68Se →

⁶⁷Se

Selenium-67

Radioactive· Half-life: 133 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

34

Neutrons (N)

33

Mass Number (A)

67

Atomic Mass

66.949994AMU

Spin / Parity

5/2-

Binding E/A

8.110keV

Natural Abundance

Trace / None

Half-life

133 ms

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

β⁺

100.0%

β⁺p

0.5%

Decay Chain

⁶⁷SeSelenium133 ms

β⁺100.0%

β⁺p⁶⁶Ge0.50%

⁶⁷AsArsenic42.5 s

β⁺100.0%

⁶⁷GeGermanium18.9 min

β⁺100.0%

⁶⁷GaGallium3.26 d

EC100.0%

⁶⁷ZnZincSTABLE

5-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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