Periodic Table/Thallium/²¹¹Tl

← 210Tl212Tl →

²¹¹Tl

Thallium-211

Radioactive· Half-life: 1.35 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

130

Mass Number (A)

211

Atomic Mass

210.993475AMU

Spin / Parity

1/2+

Binding E/A

7.604keV

Natural Abundance

Trace / None

Half-life

1.35 min

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

β⁻

100.0%

β⁻n

2.2%

Decay Chain

²¹¹TlThallium1.35 min

β⁻100.0%

β⁻n²¹⁰Pb2.20%

²¹¹PbLead36.2 min

β⁻100.0%

²¹¹BiBismuth2.14 min

α100.0%

β⁻²¹¹Po0.28%

²⁰⁷TlThallium4.77 min

β⁻100.0%

²⁰⁷PbLeadSTABLE

5-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

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