Periodic Table/Thallium/²¹⁵Tl

← 214Tl216Tl →

²¹⁵Tl

Thallium-215

Radioactive· Half-life: 9.70 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

134

Mass Number (A)

215

Atomic Mass

215.010768AMU

Spin / Parity

1/2+

Binding E/A

7.537keV

Natural Abundance

Trace / None

Half-life

9.70 s

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

β⁻

100.0%

β⁻n

4.6%

Decay Chain

²¹⁵TlThallium9.70 s

β⁻100.0%

β⁻n²¹⁴Pb4.60%

²¹⁵PbLead2.37 min

β⁻100.0%

²¹⁵BiBismuth7.62 min

β⁻100.0%

²¹⁵PoPolonium1.78 ms

α100.0%

β⁻²¹⁵At2.30%

²¹¹PbLead36.2 min

β⁻100.0%

²¹¹BiBismuth2.14 min

α100.0%

β⁻²¹¹Po0.28%

²⁰⁷TlThallium4.77 min

β⁻100.0%

²⁰⁷PbLeadSTABLE

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

Other Isotopes of Thallium

176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218

← Back to ThalliumData: IAEA NDS · ENSDF