Periodic Table/Thallium/¹⁷⁷Tl

← 176Tl178Tl →

¹⁷⁷Tl

Thallium-177

Radioactive· Half-life: 18.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

81

Neutrons (N)

96

Mass Number (A)

177

Atomic Mass

176.996414AMU

Spin / Parity

1/2+

Binding E/A

7.498keV

Natural Abundance

Trace / None

Half-life

18.0 ms

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

α

73.0%

p

Decay Chain

¹⁷⁷TlThallium18.0 ms

α73.0%

p¹⁷⁶Hg

¹⁷³AuGold25.5 ms

α86.0%

β⁺¹⁷³Pt

¹⁶⁹IrIridium353 ms

α53.0%

β⁺¹⁶⁹Os

¹⁶⁵ReRhenium1.60 s

β⁺86.0%

α¹⁶¹Ta14.0%

¹⁶⁵WTungsten5.10 s

β⁺100.0%

α¹⁶¹Hf

¹⁶⁵TaTantalum31.0 s

β⁺100.0%

¹⁶⁵HfHafnium1.27 min

β⁺100.0%

¹⁶⁵LuLutetium10.7 min

β⁺100.0%

¹⁶⁵YbYtterbium9.90 min

β⁺100.0%

¹⁶⁵TmThulium1.25 d

β⁺100.0%

¹⁶⁵ErErbium10.4 h

EC100.0%

¹⁶⁵HoHolmiumSTABLE

12-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