Talyûm

Talyûm (Tl)

chemical element with symbol Tl and atomic number 81
Atomic Number81
Atomic Weight204.38
Hejmara baristeyî205
Group13
Period6
Blockp
Proton81 p+
Notron124 n0
Kareva81 e-
Animated Bohr model of Tl (Talyûm)

Physical Property

Atomic Radius
190 pm
molar volume
Covalent Radius
144 pm
Metallic Radius
144 pm
ionic radius
150 pm
Crystal Radius
164 pm
Van der Waals radius
196 pm
density
11,8 g/cm³
Atomic Radii Of The Elements: Talyûm0102030405060708090100110120130140150160170180190200pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
6,108287 eV/particle
ionization energy of Tl (Talyûm)
enthalpy of vaporization
162,4 kJ/mol
enthalpy of fusion
4,31 kJ/mol
standard enthalpy of formation
182,2 kJ/mol
Kareva
electron shell2, 8, 18, 32, 18, 3
Bohr model: Tl (Talyûm)
valence electron3
Lewis structure: Tl (Talyûm)
electron configuration[Xe] 4f14 5d10 6s2 6p1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p1
Enhanced Bohr model of Tl (Talyûm)
Orbital Diagram of Tl (Talyûm)
oxidation number-5, -2, -1, 1, 2, 3
electronegativity
1.8
Electrophilicity Index
0,9173102715055317 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
1.746,15 K
Melting Point
577,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
46,1 W/(m K)
thermal expansion
0,0000299 1/K
molar heat capacity
26,32 J/(mol K)
Specific Heat Capacity
0,129 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
6,7 MS/m
electrical resistivity
0,00000015 m Ω
superconductivity
2,38 K
magnetism
typediamagnetic
magnetic susceptibility (Mass)
-0,000000003 m³/Kg
magnetic susceptibility (Molar)
-0,000000000613 m³/mol
magnetic susceptibility (Volume)
-0,0000356
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,46 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
1,2 MPa
bulk modulus
43 GPa
shear modulus
2,8 GPa
Young's modulus
8 GPa
Poisson's ratio
0,45
Leza dengê
818 m/s
classification
CategoryPost-transition metals, Poor metals
CAS GroupIIIB
IUPAC GroupIIIA
Glawe Number81
Mendeleev Number85
Pettifor Number78
Geochemical Class
Goldschmidt classificationchalcophile

other

Gas Basicity
polarizability
50 ± 2 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
3,4
Neutron Mass Absorption
0,00059
quantum number2P1/2
space group194 (P63/mmc)

Isotopes of Thallium

Stable Isotopes2
Unstable Isotopes41
Natural Isotopes2
Isotopic Composition20570.49%20570.49%20329.52%20329.52%

176Tl

Hejmara baristeyî176
neutron number95
Giraniya atomê
176,000627731 ± 0,000089166 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,2 ± 2,3 ms
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê2004
parity-

decay modeintensity
p (proton emission)100%
α (α emission)
β+ (β+ decay; β+ = ϵ + e+)

177Tl

Hejmara baristeyî177
neutron number96
Giraniya atomê
176,996414252 ± 0,000023218 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
18 ± 5 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1999
parity+

decay modeintensity
α (α emission)73%
p (proton emission)

178Tl

Hejmara baristeyî178
neutron number97
Giraniya atomê
177,995047 ± 0,00011 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
255 ± 9 ms
spin4
nuclear quadrupole moment
dema îcadkirinê yan keşfê1997
parity-

decay modeintensity
α (α emission)62%
β+ (β+ decay; β+ = ϵ + e+)38%
β+ SF (β+-delayed fission)0.15%

179Tl

Hejmara baristeyî179
neutron number98
Giraniya atomê
178,991122185 ± 0,000041495 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
437 ± 9 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1983
parity+

decay modeintensity
α (α emission)60%
β+ (β+ decay; β+ = ϵ + e+)

180Tl

Hejmara baristeyî180
neutron number99
Giraniya atomê
179,98991895 ± 0,000075058 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,09 ± 0,01 s
spin4
nuclear quadrupole moment
dema îcadkirinê yan keşfê1987
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
β+ SF (β+-delayed fission)0.0032%

181Tl

Hejmara baristeyî181
neutron number100
Giraniya atomê
180,986259978 ± 0,000009771 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,9 ± 0,1 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1996
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)8.6%

182Tl

Hejmara baristeyî182
neutron number101
Giraniya atomê
181,985692649 ± 0,000012856 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,9 ± 0,1 s
spin4
nuclear quadrupole moment
dema îcadkirinê yan keşfê1991
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.49%
β+ SF (β+-delayed fission)3.4%

183Tl

Hejmara baristeyî183
neutron number102
Giraniya atomê
182,982192843 ± 0,000010017 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,9 ± 0,7 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1980
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

184Tl

Hejmara baristeyî184
neutron number103
Giraniya atomê
183,981874973 ± 0,000010747 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9,5 ± 0,2 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1976
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.78%
α (α emission)1.22%

185Tl

Hejmara baristeyî185
neutron number104
Giraniya atomê
184,978789189 ± 0,000022194 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
19,5 ± 0,5 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1976
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

186Tl

Hejmara baristeyî186
neutron number105
Giraniya atomê
185,978654787 ± 0,000022276 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,5 ± 0,5 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1975
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

187Tl

Hejmara baristeyî187
neutron number106
Giraniya atomê
186,97590474 ± 0,00000864 Da
g-factor
3,08 ± 0,12
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1976
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

188Tl

Hejmara baristeyî188
neutron number107
Giraniya atomê
187,976020886 ± 0,000032103 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
71 ± 2 s
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

189Tl

Hejmara baristeyî189
neutron number108
Giraniya atomê
188,973573525 ± 0,000008983 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,3 ± 0,2 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1972
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

190Tl

Hejmara baristeyî190
neutron number109
Giraniya atomê
189,973841771 ± 0,000007784 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,6 ± 0,3 m
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

191Tl

Hejmara baristeyî191
neutron number110
Giraniya atomê
190,971784093 ± 0,000007889 Da
g-factor
3,164 ± 0,008
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1974
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)

192Tl

Hejmara baristeyî192
neutron number111
Giraniya atomê
191,972225 ± 0,000034 Da
g-factor
0,0995 ± 0,0015
natural abundance
radioactivity☢️ radioactive element
half-life
9,6 ± 0,4 m
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1961
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

193Tl

Hejmara baristeyî193
neutron number112
Giraniya atomê
192,970501994 ± 0,0000072 Da
g-factor
3,17 ± 0,006
natural abundance
radioactivity☢️ radioactive element
half-life
21,6 ± 0,8 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1960
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

194Tl

Hejmara baristeyî194
neutron number113
Giraniya atomê
193,971081408 ± 0,000015 Da
g-factor
0,0695 ± 0,0015
natural abundance
radioactivity☢️ radioactive element
half-life
33 ± 0,5 m
spin2
nuclear quadrupole moment
-0,282 ± 0,007
dema îcadkirinê yan keşfê1960
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)

195Tl

Hejmara baristeyî195
neutron number114
Giraniya atomê
194,969774052 ± 0,000011944 Da
g-factor
3,14 ± 0,08
natural abundance
radioactivity☢️ radioactive element
half-life
1,16 ± 0,05 h
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1955
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

196Tl

Hejmara baristeyî196
neutron number115
Giraniya atomê
195,970481189 ± 0,000013 Da
g-factor
0,036 ± 0,0015
natural abundance
radioactivity☢️ radioactive element
half-life
1,84 ± 0,03 h
spin2
nuclear quadrupole moment
-0,178 ± 0,014
dema îcadkirinê yan keşfê1955
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

197Tl

Hejmara baristeyî197
neutron number116
Giraniya atomê
196,969560492 ± 0,000014573 Da
g-factor
3,14 ± 0,04
natural abundance
radioactivity☢️ radioactive element
half-life
2,84 ± 0,04 h
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1955
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

198Tl

Hejmara baristeyî198
neutron number117
Giraniya atomê
197,970446669 ± 0,0000081 Da
g-factor
0 ± 0,005
natural abundance
radioactivity☢️ radioactive element
half-life
5,3 ± 0,5 h
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1949
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

199Tl

Hejmara baristeyî199
neutron number118
Giraniya atomê
198,969877 ± 0,00003 Da
g-factor
3,18 ± 0,04
natural abundance
radioactivity☢️ radioactive element
half-life
7,42 ± 0,08 h
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1949
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

200Tl

Hejmara baristeyî200
neutron number119
Giraniya atomê
199,970963608 ± 0,000006182 Da
g-factor
0,02 ± 0,005
natural abundance
radioactivity☢️ radioactive element
half-life
26,1 ± 0,1 h
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1949
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

201Tl

Hejmara baristeyî201
neutron number120
Giraniya atomê
200,970820235 ± 0,000015228 Da
g-factor
3,198 ± 0,006
natural abundance
radioactivity☢️ radioactive element
half-life
3,0421 ± 0,0008 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
ϵ (electron capture)100%

202Tl

Hejmara baristeyî202
neutron number121
Giraniya atomê
201,972108874 ± 0,000001972 Da
g-factor
0,03 ± 0,005
natural abundance
radioactivity☢️ radioactive element
half-life
12,31 ± 0,08 d
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1940
parity-

decay modeintensity
ϵ (electron capture)100%

203Tl

Hejmara baristeyî203
neutron number122
Giraniya atomê
202,972344098 ± 0,000001257 Da
g-factor
natural abundance
29,515 ± 0,044
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

204Tl

Hejmara baristeyî204
neutron number123
Giraniya atomê
203,97386342 ± 0,000001238 Da
g-factor
0,045 ± 0,005
natural abundance
radioactivity☢️ radioactive element
half-life
3,783 ± 0,012 y
spin2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1953
parity-

decay modeintensity
β (β decay)97.08%
EC+B+2.92%

205Tl

Hejmara baristeyî205
neutron number124
Giraniya atomê
204,974427318 ± 0,00000133 Da
g-factor
natural abundance
70,485 ± 0,044
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

206Tl

Hejmara baristeyî206
neutron number125
Giraniya atomê
205,976110108 ± 0,00000138 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,202 ± 0,011 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1935
parity-

decay modeintensity
β (β decay)100%

207Tl

Hejmara baristeyî207
neutron number126
Giraniya atomê
206,977418605 ± 0,000005839 Da
g-factor
3,738 ± 0,01
natural abundance
radioactivity☢️ radioactive element
half-life
4,77 ± 0,02 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1908
parity+

decay modeintensity
β (β decay)100%

208Tl

Hejmara baristeyî208
neutron number127
Giraniya atomê
207,982018006 ± 0,000001989 Da
g-factor
0,0582 ± 0,0026
natural abundance
radioactivity☢️ radioactive element
half-life
3,053 ± 0,004 m
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê1909
parity+

decay modeintensity
β (β decay)100%

209Tl

Hejmara baristeyî209
neutron number128
Giraniya atomê
208,985351713 ± 0,000006559 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,162 ± 0,007 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

210Tl

Hejmara baristeyî210
neutron number129
Giraniya atomê
209,990072942 ± 0,000012456 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,3 ± 0,03 m
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê1909
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.009%

211Tl

Hejmara baristeyî211
neutron number130
Giraniya atomê
210,993475 ± 0,000045 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
81 ± 16 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1998
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.2%

212Tl

Hejmara baristeyî212
neutron number131
Giraniya atomê
211,998335 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
31 ± 8 s
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê1998
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.8%

213Tl

Hejmara baristeyî213
neutron number132
Giraniya atomê
213,001915 ± 0,000029 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
23,8 ± 4,4 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)7.6%

214Tl

Hejmara baristeyî214
neutron number133
Giraniya atomê
214,00694 ± 0,00021 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11 ± 2,4 s
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)34%

215Tl

Hejmara baristeyî215
neutron number134
Giraniya atomê
215,010768 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9,7 ± 3,8 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)4.6%

216Tl

Hejmara baristeyî216
neutron number135
Giraniya atomê
216,015964 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,9 ± 3,3 s
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)11.5%

217Tl

Hejmara baristeyî217
neutron number136
Giraniya atomê
217,020032 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

218Tl

Hejmara baristeyî218
neutron number137
Giraniya atomê
218,025454 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin6
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Thallium pieces in ampoule
Thallium-croprotated

dîrok

kaşîf an îcadkerSir William Crookes
location of discoveryEngland
dema îcadkirinê yan keşfê1861
BêjenasîGreek: thallos (green twig), for a bright green line in its spectrum.
pronunciationTHAL-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
0,85 mg/kg
natural abundance (Okyanûs)
0,000019 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0,0000078 %
natural abundance (Roj)
0,0000001 %
Abundance in Universe
0,00000005 %

Nuclear Screening Constants

1s1.5591
2p4.5138
2s21.3158
3d13.4658
3p22.6335
3s23.5809
4d37.6112
4f38.1324
4p35.7832
4s34.9212
5d58.975
5p53.9115
5s51.878
6p68.7462
6s68.1804