Periodic Table/Iridium/¹⁶⁹Ir

← 168Ir170Ir →

¹⁶⁹Ir

Iridium-169

Radioactive· Half-life: 353 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

77

Neutrons (N)

92

Mass Number (A)

169

Atomic Mass

168.976282AMU

Spin / Parity

1/2+

Binding E/A

7.613keV

Natural Abundance

Trace / None

Half-life

353 ms

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

α

53.0%

β⁺

Decay Chain

¹⁶⁹IrIridium353 ms

α53.0%

β⁺¹⁶⁹Os

¹⁶⁵ReRhenium1.60 s

β⁺86.0%

α¹⁶¹Ta14.0%

¹⁶⁵WTungsten5.10 s

β⁺100.0%

α¹⁶¹Hf

¹⁶⁵TaTantalum31.0 s

β⁺100.0%

¹⁶⁵HfHafnium1.27 min

β⁺100.0%

¹⁶⁵LuLutetium10.7 min

β⁺100.0%

¹⁶⁵YbYtterbium9.90 min

β⁺100.0%

¹⁶⁵TmThulium1.25 d

β⁺100.0%

¹⁶⁵ErErbium10.4 h

EC100.0%

¹⁶⁵HoHolmiumSTABLE

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

Other Isotopes of Iridium

163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205

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