Periodic Table/Gold/¹⁸¹Au

← 180Au182Au →

¹⁸¹Au

Gold-181

Radioactive· Half-life: 13.7 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

79

Neutrons (N)

102

Mass Number (A)

181

Atomic Mass

180.970079AMU

Spin / Parity

5/2-

Binding E/A

7.661keV

Natural Abundance

Trace / None

Half-life

13.7 s

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

β⁺

97.3%

α

2.7%

Decay Chain

¹⁸¹AuGold13.7 s

β⁺97.3%

α¹⁷⁷Ir2.70%

¹⁸¹PtPlatinum52.0 s

β⁺100.0%

α¹⁷⁷Os0.07%

¹⁸¹IrIridium4.90 min

β⁺100.0%

¹⁸¹OsOsmium1.75 h

β⁺100.0%

¹⁸¹ReRhenium19.9 h

β⁺100.0%

¹⁸¹WTungsten121 d

EC100.0%

¹⁸¹TaTantalumSTABLE

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

Other Isotopes of Gold

168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210

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