Periodic Table/Thallium/²¹²Tl

← 211Tl213Tl →

²¹²Tl

Thallium-212

Radioactive· Half-life: 31.0 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

131

Mass Number (A)

212

Atomic Mass

211.998335AMU

Spin / Parity

5+

Binding E/A

7.585keV

Natural Abundance

Trace / None

Half-life

31.0 s

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

β⁻

100.0%

β⁻n

1.8%

Decay Chain

²¹²TlThallium31.0 s

β⁻100.0%

β⁻n²¹¹Pb1.80%

²¹²PbLead10.6 h

β⁻100.0%

²¹²BiBismuth1.01 h

β⁻64.1%

α²⁰⁸Tl35.9%

β⁻α²⁰⁸Pb0.01%

²¹²PoPolonium294 ns

α100.0%

²⁰⁸PbLeadSTABLE

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

← Back to ThalliumData: IAEA NDS · ENSDF