Thallium

facet 81 of regular table is Thallium through atomic number 81, atomic load 204.3833. Thallium, price Tl, has a basic Hexagonal structure and Silver color. Thallium is a post-transition steel element. Trivial name of Thallium is triels, icosagens. Know everything about Thallium Facts, physics Properties, chemistry Properties, electronic configuration, Atomic and Crystal Structure.


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Thallium is a chemical element with symbol Tl and also atomic number 81. This soft gray post-transition metal is not found complimentary in nature. When isolated, it resembles tin, but discolors when exposed come air.

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Thallium Facts

Read an essential information and facts about element Thallium

name Thallium
atom Number 81
atom Symbol Tl
Atomic weight 204.3833
phase Solid
shade Silver
Classification post-transition metal
team in periodic Table 13
Group Name boron family
period in periodic Table 6
Block in periodic Table p-block
Electronic Configuration 4f14 5d10 6s2 6p1
Melting allude 304 °C
Boiling suggest 1473 °C
Electronic covering Structure <2, 8, 18, 32, 18, 3>
CAS Number CAS7440-28-0

neighborhood
48
Cd
49
In
50
Sn
80
Hg
81
Tl
82
Pb
112
Cn
113
Nh
114
Fl
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
Lanthanides
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
Actinide
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

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How to locate Thallium on routine Table

Periodic table is arranged by atomic number, number of protons in the nucleus i m sorry is exact same as number of electrons. The atomic number rises from left to right. Regular table starts at peak left ( atomic number 1) and ends at bottom appropriate (atomic number 118). As such you can directly look because that atomic number 81 to discover Thallium on regular table.

Another way to read periodic table and also locate an facet is by using team number (column) and period number (row). To locate Thallium on regular table look because that cross section of team 13 and period 6 in the modern periodic table.

discover Interactive periodic Table come Understand and Learn Cool trends

Table of Contents


History
Abundance
Physical Properties
Thermal Properties
Crystal Structure
Atomic & orbit Properties
Chemical Properties
Isotopes
Health and Safety Parameters and Guidelines
Databases
Compare Thallium with other elements

Thallium History

The element Thallium was uncovered by wilhelm Crookes in year 1861 in uk . Thallium derived its surname from the Greek thallos, "green twig"

Thallium Presence: abundance in Nature and Around Us

The table below shows the diversity of Thallium in Universe, Sun, Meteorites, Earth"s Crust, Oceans and also Human Body.

Ppb by load (1ppb =10^-7 %)
diversity in world 5×10-8%
variety in sun 1×10-7%
diversity in Meteorites 7.8×10-6%
Abundance in Earth"s tardy 5.3e-07
variety in oceans 1×10-10%
diversity in people N/A

Crystal structure of Thallium

The hard state framework of Thallium is Simple Hexagonal.

The decision structure have the right to be described in regards to its unit Cell. The unit cells repeats itself in 3 dimensional space to type the structure.

Unit cell Parameters

The unit cell is represented in terms of its lattice parameters, which space the lengths that the cell edges Lattice Constants (a, b and also c)

a b c
345.66 345.66 552.48 pm

and the angles in between them Lattice angle (alpha, beta and gamma).

alpha beta gamma
π/2 π/2 2 π/3

The positions of the atoms within the unit cell are explained by the set of atom positions ( xi, yi, zi) measured native a referral lattice point.

The symmetry nature of the decision are explained by the principle of an are groups. All possible symmetric arrangements of particles in three-dimensional an are are defined by the 230 room groups (219 distinct types, or 230 if chiral copies are considered distinct.

space Group name P63/mmc
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room Group Number 194
Crystal structure Simple Hexagonal

Thallium Atomic and Orbital Properties

Thallium atoms have actually 81 electrons and also the digital shell framework is <2, 8, 18, 32, 18, 3> through Atomic ax Symbol (Quantum Numbers) 2P1/2.


atomic Number 81
Number of electrons (with no charge) 81
Number that Protons 81
Mass Number 204
Number the Neutrons 123
Shell structure (Electrons per power level) <2, 8, 18, 32, 18, 3>
Electron configuration 4f14 5d10 6s2 6p1
Valence Electrons 6s2 6p1
Oxidation State -5;-2;-1 1;2;3
Atomic term Symbol (Quantum Numbers) 2P1/2

Shell framework of Thallium - electron per power level


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Ground State digital Configuration of Thallium - neutral Thallium atom

The floor state electronic configuration that Neutral Thallium atom is 4f14 5d10 6s2 6p1. The portion of Thallium configuration the is equivalent to the noble gas the the coming before period, is abbreviated as . Because that atoms with countless electrons, this notation have the right to become prolonged and for this reason an abbreviation notation is used.This is crucial as the is the Valence electron 4f14 5d10 6s2 6p1, electrons in the outermost shell that recognize the chemical properties the the element.

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Unabbreviated digital configuration that neutral Thallium

Complete soil state digital configuration for the Thallium atom, Unabbreviated digital configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p1

Atomic structure of Thallium

Thallium atomic radius is 156 pm, if it"s covalent radius is 148 pm.

atom Radius

156 pm (1.56 Å)

Atomic Volume 17.247535865 cm3
Covalent Radius 148 pm (1.48 Å)
valve der Waals Radius 196 pm
neutron Cross ar 3.4 σa/barns

Atomic Spectrum of Thallium

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Thallium chemical Properties: Thallium Ionization Energies and electron affinity

The electron affinity the Thallium is 19.2 kJ/mol

Valence 3
Electronegativity 1.62
ElectronAffinity 19.2 kJ/mol

Ionization energy of Thallium

Refer to table below for Ionization energies that Thallium

Ionization energy number Enthalpy - kJ/mol
1 589.4
2 1971
3 2878

Thallium physical Properties

Refer to listed below table for Thallium physics Properties

thickness 11.85 g/cm3
Molar Volume 17.247535865 cm3

Elastic Properties

Young Modulus 8 GPa
Shear Modulus 2.8 GPa
mass Modulus 43 GPa
Poisson ratio 0.45

Hardness the Thallium - test to measure up of Hardness of Element

Mohs Hardness 1.2 MPa
Vickers Hardness N/A
Brinell Hardness 26.4 MPa

Thallium electric Properties

Thallium is Conductor that electricity. Refer to table listed below for the electrical properties that Thallium

electric Conductivity 6.7×106 S/m
Resistivity 1.5×10-7 m Ω
Superconducting suggest 2.38

Thallium Heat and Conduction Properties

thermal Conductivity 46 W/(m K)
Thermal expansion 0.0000299 K-1

Thallium Magnetic Properties

Magnetic kind Diamagnetic
Curie point N/A
massive Magnetic Susceptibility -3×10-9
Molar Magnetic Susceptibility -6.13×10-10
Volume Magnetic Susceptibility -3.56e-05

Optical nature of Thallium

Refractive index N/A

Acoustic properties of Thallium

speed of Sound 818 m/s

Thallium heat Properties - Enthalpies and also thermodynamics

Refer come table below for heat properties the Thallium

Melting point 577 K (304 °C)
Boiling suggest 1746 K (1473 °C)
crucial Temperature N/A
Superconducting point 2.38

Enthalpies the Thallium

warmth of fusion 4.2 kJ/mol
warmth of Vaporization 165 kJ/mol
heat of burning N/A

Thallium isotope - nuclear Properties that Thallium

Isotopes the rhodium. Naturally occurring Thallium has actually 2 steady isotope - 203Tl, 205Tl.


Isotope Isotope massive % abundance T fifty percent Decay setting
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 29.524% steady N/A
204Tl
205Tl 70.476% steady N/A
206Tl
207Tl
208Tl
209Tl
210Tl
211Tl
212Tl

Regulatory and Health - Health and also Safety Parameters and also Guidelines

CAS Number CAS7440-28-0
RTECS Number RTECSXG3425000
period Hazard class N/A
period Numbers 1707
EU Number N/A
NFPA Fire Rating N/A
NFPA dangers N/A
NFPA health and wellness Rating N/A
NFPA Reactivity Rating N/A
Autoignition point N/A
Flashpoint N/A

Database Search

perform of unique identifiers to find the element in miscellaneous chemical registry databases

Database i would number
CAS Number - chemistry Abstracts business (CAS) CAS7440-28-0
CID Number CID5359464
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSXG3425000

Compare Thallium through all Group 13 elements

Thallium vs Boron Thallium vs Aluminium Thallium vs Gallium Thallium vs Indium Thallium vs Nihonium

Compare Thallium v all post-transition metal elements

Thallium vs Aluminium Thallium vs Gallium Thallium vs Indium Thallium vs tin Thallium vs lead Thallium vs Bismuth Thallium vs Nihonium Thallium vs Flerovium Thallium vs Moscovium Thallium vs Livermorium