Periodic Table/Gold/¹⁸⁷Au

← 186Au188Au →

¹⁸⁷Au

Gold-187

Radioactive· Half-life: 8.30 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

79

Neutrons (N)

108

Mass Number (A)

187

Atomic Mass

186.964542AMU

Spin / Parity

1/2+

Binding E/A

7.702keV

Natural Abundance

Trace / None

Half-life

8.30 min

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

β⁺

100.0%

α

Decay Chain

¹⁸⁷AuGold8.30 min

β⁺100.0%

α¹⁸³Ir

¹⁸⁷PtPlatinum2.35 h

β⁺100.0%

¹⁸⁷IrIridium10.5 h

β⁺100.0%

¹⁸⁷OsOsmiumSTABLE

4-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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