Periodic Table/Iridium/¹⁷⁴Ir

← 173Ir175Ir →

¹⁷⁴Ir

Iridium-174

Radioactive· Half-life: 7.90 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

77

Neutrons (N)

97

Mass Number (A)

174

Atomic Mass

173.966950AMU

Spin / Parity

2+

Binding E/A

7.676keV

Natural Abundance

Trace / None

Half-life

7.90 s

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

β⁺

99.5%

α

0.5%

Decay Chain

¹⁷⁴IrIridium7.90 s

β⁺99.5%

α¹⁷⁰Re0.50%

¹⁷⁴OsOsmium44.0 s

β⁺100.0%

α¹⁷⁰W0.02%

¹⁷⁴ReRhenium2.40 min

β⁺100.0%

¹⁷⁴WTungsten33.2 min

β⁺100.0%

¹⁷⁴TaTantalum1.14 h

β⁺100.0%

¹⁷⁴HfHafnium2000000 Gy

α100.0%

2β⁺¹⁷⁴Yb

¹⁷⁰YbYtterbiumSTABLE

7-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

← Back to IridiumData: IAEA NDS · ENSDF