Periodic Table/Thallium/¹⁸⁹Tl

← 188Tl190Tl →

¹⁸⁹Tl

Thallium-189

Radioactive· Half-life: 2.30 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

108

Mass Number (A)

189

Atomic Mass

188.973574AMU

Spin / Parity

1/2+

Binding E/A

7.647keV

Natural Abundance

Trace / None

Half-life

2.30 min

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

β⁺

100.0%

Decay Chain

¹⁸⁹TlThallium2.30 min

β⁺100.0%

¹⁸⁹HgMercury7.60 min

β⁺100.0%

α¹⁸⁵Pt

¹⁸⁹AuGold28.7 min

β⁺100.0%

α¹⁸⁵Ir3.00%

¹⁸⁹PtPlatinum10.9 h

β⁺100.0%

¹⁸⁹IrIridium13.2 d

EC100.0%

¹⁸⁹OsOsmiumSTABLE

6-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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