Periodic Table/Selenium/⁹⁰Se

← 89Se91Se →

⁹⁰Se

Selenium-90

Radioactive· Half-life: 210 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

34

Neutrons (N)

56

Mass Number (A)

90

Atomic Mass

89.940096AMU

Spin / Parity

0+

Binding E/A

8.203keV

Natural Abundance

Trace / None

Half-life

210 ms

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

β⁻

100.0%

β⁻n

Decay Chain

⁹⁰SeSelenium210 ms

β⁻100.0%

β⁻n⁸⁹Br

⁹⁰BrBromine1.91 s

β⁻100.0%

β⁻n⁸⁹Kr25.3%

⁹⁰KrKrypton32.3 s

β⁻100.0%

⁹⁰RbRubidium2.63 min

β⁻100.0%

⁹⁰SrStrontium28.9 y

β⁻100.0%

⁹⁰YYttrium2.67 d

β⁻100.0%

⁹⁰ZrZirconiumSTABLE

7-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

← Back to SeleniumData: IAEA NDS · ENSDF