Periodic Table/Thulium/¹⁵⁴Tm

← 153Tm155Tm →

¹⁵⁴Tm

Thulium-154

Radioactive· Half-life: 8.10 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

69

Neutrons (N)

85

Mass Number (A)

154

Atomic Mass

153.941570AMU

Spin / Parity

2-

Binding E/A

7.845keV

Natural Abundance

Trace / None

Half-life

8.10 s

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

α

54.0%

β⁺

46.0%

Decay Chain

¹⁵⁴TmThulium8.10 s

α54.0%

β⁺¹⁵⁴Er46.0%

¹⁵⁰HoHolmium1.28 min

β⁺100.0%

¹⁵⁰DyDysprosium7.17 min

β⁺66.4%

α¹⁴⁶Gd33.6%

¹⁵⁰TbTerbium3.48 h

β⁺100.0%

α¹⁴⁶Eu

¹⁵⁰GdGadolinium1.79 My

α100.0%

2β⁺¹⁵⁰Sm

¹⁴⁶SmSamarium68.0 My

α100.0%

¹⁴²NdNeodymiumSTABLE

7-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