Periodic Table/Platinum/¹⁷⁸Pt

← 177Pt179Pt →

¹⁷⁸Pt

Platinum-178

Radioactive· Half-life: 20.7 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

78

Neutrons (N)

100

Mass Number (A)

178

Atomic Mass

177.965649AMU

Spin / Parity

0+

Binding E/A

7.684keV

Natural Abundance

Trace / None

Half-life

20.7 s

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

β⁺

92.3%

α

7.7%

Decay Chain

¹⁷⁸PtPlatinum20.7 s

β⁺92.3%

α¹⁷⁴Os7.70%

¹⁷⁸IrIridium12.0 s

β⁺100.0%

¹⁷⁸OsOsmium5.00 min

β⁺100.0%

¹⁷⁸ReRhenium13.2 min

β⁺100.0%

¹⁷⁸WTungsten21.6 d

EC100.0%

¹⁷⁸TaTantalum2.36 h

β⁺100.0%

¹⁷⁸HfHafniumSTABLE

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

Other Isotopes of Platinum

165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208

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