Periodic Table/Thallium/¹⁸⁶Tl

← 185Tl187Tl →

¹⁸⁶Tl

Thallium-186

Radioactive· Half-life: 3.50 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

105

Mass Number (A)

186

Atomic Mass

185.978655AMU

Spin / Parity

2-

Binding E/A

7.615keV

Natural Abundance

Trace / None

Half-life

3.50 s

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

β⁺

α

Decay Chain

¹⁸⁶TlThallium3.50 s

β⁺

α¹⁸²Au

¹⁸⁶HgMercury1.38 min

β⁺100.0%

α¹⁸²Pt0.02%

¹⁸⁶AuGold10.7 min

β⁺100.0%

α¹⁸²Ir0.00%

¹⁸⁶PtPlatinum2.08 h

β⁺100.0%

α¹⁸²Os1.40%

¹⁸⁶IrIridium16.6 h

β⁺100.0%

¹⁸⁶OsOsmium2000000 Gy

α100.0%

¹⁸²WTungstenSTABLE

7-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