Periodic Table/Thulium/¹⁶¹Tm

← 160Tm162Tm →

¹⁶¹Tm

Thulium-161

Radioactive· Half-life: 30.2 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

69

Neutrons (N)

92

Mass Number (A)

161

Atomic Mass

160.933549AMU

Spin / Parity

7/2+

Binding E/A

7.902keV

Natural Abundance

Trace / None

Half-life

30.2 min

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

β⁺

100.0%

Decay Chain

¹⁶¹TmThulium30.2 min

β⁺100.0%

¹⁶¹ErErbium3.21 h

β⁺100.0%

¹⁶¹HoHolmium2.48 h

EC100.0%

¹⁶¹DyDysprosiumSTABLE

4-step decay chain → stable · Primary path shown

Other Isotopes of Thulium

144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182

← Back to ThuliumData: IAEA NDS · ENSDF