181Hg

Mercury-181

Radioactive· Half-life: 3.60 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

80

Neutrons (N)

101

Mass Number (A)

181

Atomic Mass

180.977819AMU

Spin / Parity

1/2-

Binding E/A

7.614keV

Natural Abundance

Trace / None

Half-life

3.60 s

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

β⁺
73.0%
α
27.0%
β⁺p
0.0%
β⁺α
9.0%

Decay Chain

β⁺73.0%
α177Pt27.0%
β⁺α177Ir9.00%
β⁺p180Pt0.01%
181AuGold13.7 s
β⁺97.3%
α177Ir2.70%
181PtPlatinum52.0 s
β⁺100.0%
α177Os0.07%
181IrIridium4.90 min

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

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