Periodic Table/Bismuth/¹⁸⁵Bi

← 184Bi186Bi →

¹⁸⁵Bi

Bismuth-185

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

83

Neutrons (N)

102

Mass Number (A)

185

Atomic Mass

184.997600AMU

Spin / Parity

9/2-

Binding E/A

7.503keV

Natural Abundance

Trace / None

Half-life

Unknown

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

p

α

Decay Chain

¹⁸⁵BiBismuth?

p

α¹⁸¹Tl

¹⁸⁴PbLead490 ms

α80.0%

β⁺¹⁸⁴Tl

¹⁸⁰HgMercury2.59 s

β⁺52.0%

α¹⁷⁶Pt48.0%

¹⁸⁰AuGold7.90 s

β⁺99.4%

α¹⁷⁶Ir0.58%

¹⁸⁰PtPlatinum56.0 s

β⁺99.5%

α¹⁷⁶Os0.52%

¹⁸⁰IrIridium1.50 min

β⁺100.0%

¹⁸⁰OsOsmium21.5 min

β⁺100.0%

¹⁸⁰ReRhenium2.46 min

β⁺100.0%

¹⁸⁰WTungsten1590000000 Gy

α100.0%

2β⁺¹⁸⁰Hf

¹⁷⁶HfHafniumSTABLE

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

Other Isotopes of Bismuth

184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224

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