Periodic Table/Cobalt/⁷⁷Co

← 76Co78Co →

⁷⁷Co

Cobalt-77

Radioactive· Half-life: 15.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

27

Neutrons (N)

50

Mass Number (A)

77

Atomic Mass

76.976479AMU

Spin / Parity

7/2-

Binding E/A

7.902keV

Natural Abundance

Trace / None

Half-life

15.0 ms

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

β⁻

100.0%

β⁻n

2n

3n

Decay Chain

⁷⁷CoCobalt15.0 ms

β⁻100.0%

β⁻n⁷⁶Ni

2n⁷⁵Co

3n⁷⁴Co

⁷⁷NiNickel159 ms

β⁻100.0%

β⁻n⁷⁶Cu26.0%

2n⁷⁵Ni

⁷⁷CuCopper470 ms

β⁻100.0%

β⁻n⁷⁶Zn30.1%

⁷⁷ZnZinc2.08 s

β⁻100.0%

⁷⁷GaGallium13.2 s

β⁻100.0%

⁷⁷GeGermanium11.2 h

β⁻100.0%

⁷⁷AsArsenic1.62 d

β⁻100.0%

⁷⁷SeSeleniumSTABLE

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

Other Isotopes of Cobalt

47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

← Back to CobaltData: IAEA NDS · ENSDF