Periodic Table/Thulium/¹⁴⁶Tm

← 145Tm147Tm →

¹⁴⁶Tm

Thulium-146

Radioactive· Half-life: 155 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

69

Neutrons (N)

77

Mass Number (A)

146

Atomic Mass

145.966661AMU

Spin / Parity

1+

Binding E/A

7.673keV

Natural Abundance

Trace / None

Half-life

155 ms

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

p

100.0%

β⁺

β⁺p

Decay Chain

¹⁴⁶TmThulium155 ms

p100.0%

β⁺¹⁴⁶Er

β⁺p¹⁴⁵Ho

¹⁴⁵ErErbium900 ms

β⁺100.0%

β⁺p¹⁴⁴Dy

¹⁴⁵HoHolmium2.40 s

β⁺100.0%

¹⁴⁵DyDysprosium9.50 s

β⁺100.0%

β⁺p¹⁴⁴Gd

¹⁴⁵TbTerbium30.9 s

β⁺100.0%

¹⁴⁵GdGadolinium23.0 min

β⁺100.0%

¹⁴⁵EuEuropium5.93 d

β⁺100.0%

¹⁴⁵SmSamarium340 d

EC100.0%

¹⁴⁵PmPromethium17.7 y

EC100.0%

α¹⁴¹Pr2.80%

¹⁴⁵NdNeodymiumSTABLE

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

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