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Chlorine
Melting Point of Bromine
B (Symbol of Boron)
76 (Atomic Number of Osmium)
Boiling Point of Yttrium in °C
Thallium (Tl) Properties
Tl
Thallium
Properties
36 /
87
Atomic Mass
204.4
amu
Atomic Number
81
Block
P
Boiling Point
1746
K
Conductivity (Electric)
6.7
MS/m
Conductivity (Thermal)
46
W/mK
Crystal Structure
Simple Hexagonal
Decay Mode
—
Density (Liquid)
11220
kg/m³
Density (STP)
11850
kg/m³
Electron Affinity
36.4
kJ/mol
Electron Configuration (Semantic)
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹
Electronegativity (Pauling)
1.62
Electrons per Shell
2, 8, 18, 32, 18, 3
Group
13
Half Life
Stable
year
Heat (Fusion)
4.2
kJ/mol
Heat (Molar)
26.32
J/K.mol
Heat (Specific)
129
J/(kg K)
Heat (Vaporization)
165
kJ/mol
Ionization Energies
589.4, 1971, 2878
kJ/mol
Isotopes Known
¹⁷⁶Tl, ¹⁷⁷Tl, ¹⁷⁸Tl, ¹⁷⁹Tl, ¹⁸⁰Tl, ¹⁸¹Tl, ¹⁸²Tl, ¹⁸³Tl, ¹⁸⁴Tl, ¹⁸⁵Tl, ¹⁸⁶Tl, ¹⁸⁷Tl, ¹⁸⁸Tl, ¹⁸⁹Tl, ¹⁹⁰Tl, ¹⁹¹Tl, ¹⁹²Tl, ¹⁹³Tl, ¹⁹⁴Tl, ¹⁹⁵Tl, ¹⁹⁶Tl, ¹⁹⁷Tl, ¹⁹⁸Tl, ¹⁹⁹Tl, ²⁰⁰Tl, ²⁰¹Tl, ²⁰²Tl, ²⁰³Tl, ²⁰⁴Tl, ²⁰⁵Tl, ²⁰⁶Tl, ²⁰⁷Tl, ²⁰⁸Tl, ²⁰⁹Tl, ²¹⁰Tl, ²¹¹Tl, ²¹²Tl
Isotopes Stable
²⁰³Tl, ²⁰⁵Tl
Magnetic Type
Diamagnetic
Melting Point
577
K
Molar Volume
0.0000172473
Oxidation States
1c,3c
Period
6
Phase
Solid
@ 22°C
Quantum Numbers
2P1/2
Radius (Covalent)
148
pm
Radius (Empirical)
190
pm
Radius (Van Der Waals)
196
pm
Series
Post-Transition Metal
Valence Electrons
3
Wikipedia
https://en.wikipedia.org/wiki/Thallium
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2
3
4
5
6
7
N
Sy
Name
Poisson Ratio
Poisson Ratio
0.032
Linear
0.45
Cell colors represent Poisson Ratio –
Show Series Instead
Lanthanides
(All Group 3)
6
Actinides
(All Group 3)
7
1
H
Hydrogen
2
He
Helium
3
Li
Lithium
4
Be
Beryllium
0.032
5
B
Boron
6
C
Carbon
7
N
Nitrogen
8
O
Oxygen
9
F
Fluorine
10
Ne
Neon
11
Na
Sodium
12
Mg
Magnesium
0.29
13
Al
Aluminum
0.35
14
Si
Silicon
15
P
Phosphorus
16
S
Sulfur
17
Cl
Chlorine
18
Ar
Argon
19
K
Potassium
20
Ca
Calcium
0.31
21
Sc
Scandium
0.28
22
Ti
Titanium
0.32
23
V
Vanadium
0.37
24
Cr
Chromium
0.21
25
Mn
Manganese
26
Fe
Iron
0.29
27
Co
Cobalt
0.31
28
Ni
Nickel
0.31
29
Cu
Copper
0.34
30
Zn
Zinc
0.25
31
Ga
Gallium
32
Ge
Germanium
33
As
Arsenic
34
Se
Selenium
0.33
35
Br
Bromine
36
Kr
Krypton
37
Rb
Rubidium
38
Sr
Strontium
0.28
39
Y
Yttrium
0.24
40
Zr
Zirconium
0.34
41
Nb
Niobium
0.4
42
Mo
Molybdenum
0.31
43
Tc
Technetium
44
Ru
Ruthenium
0.3
45
Rh
Rhodium
0.26
46
Pd
Palladium
0.39
47
Ag
Silver
0.37
48
Cd
Cadmium
0.3
49
In
Indium
50
Sn
Tin
0.36
51
Sb
Antimony
52
Te
Tellurium
53
I
Iodine
54
Xe
Xenon
55
Cs
Cesium
56
Ba
Barium
57
La
Lanthanum
0.28
58
Ce
Cerium
0.24
59
Pr
Praseodymium
0.28
60
Nd
Neodymium
0.28
61
Pm
Promethium
0.28
62
Sm
Samarium
0.27
63
Eu
Europium
0.15
64
Gd
Gadolinium
0.26
65
Tb
Terbium
0.26
66
Dy
Dysprosium
0.25
67
Ho
Holmium
0.23
68
Er
Erbium
0.24
69
Tm
Thulium
0.21
70
Yb
Ytterbium
0.21
71
Lu
Lutetium
0.26
72
Hf
Hafnium
0.37
73
Ta
Tantalum
0.34
74
W
Tungsten
0.28
75
Re
Rhenium
0.3
76
Os
Osmium
0.25
77
Ir
Iridium
0.26
78
Pt
Platinum
0.38
79
Au
Gold
0.44
80
Hg
Mercury
81
Tl
Thallium
0.45
82
Pb
Lead
0.44
83
Bi
Bismuth
0.33
84
Po
Polonium
85
At
Astatine
86
Rn
Radon
87
Fr
Francium
88
Ra
Radium
89
Ac
Actinium
90
Th
Thorium
0.27
91
Pa
Protactinium
92
U
Uranium
0.23
93
Np
Neptunium
94
Pu
Plutonium
0.21
95
Am
Americium
96
Cm
Curium
97
Bk
Berkelium
98
Cf
Californium
99
Es
Einsteinium
100
Fm
Fermium
101
Md
Mendelevium
102
No
Nobelium
103
Lr
Lawrencium
104
Rf
Rutherfordium
105
Db
Dubnium
106
Sg
Seaborgium
107
Bh
Bohrium
108
Hs
Hassium
109
Mt
Meitnerium
110
Ds
Darmstadtium
111
Rg
Roentgenium
112
Cn
Copernicium
113
Nh
Nihonium
114
Fl
Flerovium
115
Mc
Moscovium
116
Lv
Livermorium
117
Ts
Tennessine
118
Og
Oganesson
Group
Period
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