Te Tellurium – Element Information, Facts, Properties, Trends,Uses, Comparison with other elements

52
Te
Tellurium

Tellurium

Element 52 of Periodic table is Tellurium with atomic number 52, atomic weight 127.6. Tellurium, symbol Te, has a Simple Trigonal structure and Silver color. Tellurium is a metalloid element. Trivial name of Tellurium is chalcogens*. Know everything about Tellurium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

52 Te - Tellurium | SchoolMyKids

Tellurium is a chemical element with symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur.

How to Locate Tellurium on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 52 to find Tellurium on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Tellurium on periodic table look for cross section of group 16 and period 5 in the modern periodic table.

Table of Contents

Tellurium History

The element Tellurium was discovered by Franz-Joseph Müller von Reichenstein in year 1783 in Romania . Tellurium derived its name from Latin tellus, meaning 'earth'

Tellurium Presence: Abundance in Nature and Around Us

The table below shows the abundance of Tellurium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.

  Ppb by weight (1ppb =10^-7 %)
Abundance in Universe 9×10-7%
Abundance in Sun N/A
Abundance in Meteorites 2.1e-06
Abundance in Earth's Crust 9.9×10-8%
Abundance in Oceans N/A
Abundance in Humans N/A

Crystal Structure of Tellurium

The solid state structure of Tellurium is Simple Trigonal.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

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

a b c
445.72 445.72 592.9 pm

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

alpha beta gamma
π/2 π/2 2 π/3

The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name P3121 52 Te Tellurium - Crystal Structure | SchoolMyKids
Space Group Number 152
Crystal Structure Simple Trigonal

Tellurium Atomic and Orbital Properties

Tellurium atoms have 52 electrons and the electronic shell structure is [2, 8, 18, 18, 6] with Atomic Term Symbol (Quantum Numbers) 3P2.

Atomic Number 52
Number of Electrons (with no charge) 52
Number of Protons 52
Mass Number 128
Number of Neutrons 76
Shell structure (Electrons per energy level) [2, 8, 18, 18, 6]
Electron Configuration [Kr] 4d10 5s2 5p4
Valence Electrons 5s2 5p4
Oxidation State -2;-1
1;2;3;4;5;6
Atomic Term Symbol (Quantum Numbers) 3P2

Shell Structure of Tellurium - Electrons per energy level

52 Te Tellurium - Electron Shell Structure | SchoolMyKids
n s p d f
1 K 2
2 L 2 6
3 M 2 6 10
4 N 2 6 10
5 O 2 4

Ground State Electronic Configuration of Tellurium - neutral Tellurium atom

The ground state electronic configuration of Neutral Tellurium atom is [Kr] 4d10 5s2 5p4. The portion of Tellurium configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Kr]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 4d10 5s2 5p4, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Tellurium

Complete ground state electronic configuration for the Tellurium atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p4

Atomic Structure of Tellurium

Tellurium atomic radius is 123 pm, while it's covalent radius is 135 pm.

Atomic Radius

123 pm (1.23 Å)

Atomic Volume 20.4487179487 cm3
Covalent Radius 135 pm (1.35 Å)
Van der Waals Radius 206 pm
Neutron Cross Section 5.4 σa/barns

Atomic Spectrum of Tellurium

Atomic Spectrum of Tellurium | SchoolMyKids

Tellurium Chemical Properties: Tellurium Ionization Energies and electron affinity

The electron affinity of Tellurium is 190.2 kJ/mol

Valence 6
Electronegativity 2.1
ElectronAffinity 190.2 kJ/mol

Ionization Energy of Tellurium

Refer to table below for Ionization energies of Tellurium

Ionization energy number Enthalpy - kJ/mol
1 869.3
2 1790
3 2698
4 3610
5 5668
6 6820
7 1.32×104

Tellurium Physical Properties

Refer to below table for Tellurium Physical Properties

Density 6.24 g/cm3
Molar Volume 20.4487179487 cm3

Elastic Properties

Young Modulus 43 GPa
Shear Modulus 16 GPa
Bulk Modulus 65 GPa
Poisson Ratio N/A

Hardness of Tellurium - Tests to Measure of Hardness of Element

Mohs Hardness 2.25 MPa
Vickers Hardness N/A
Brinell Hardness 180 MPa

Tellurium Electrical Properties

Tellurium is Semiconductor of electricity. Refer to table below for the Electrical properties of Tellurium

Electrical Conductivity 1×104 S/m
Resistivity 0.0001 m Ω
Superconducting Point N/A

Tellurium Heat and Conduction Properties

Thermal Conductivity 3 W/(m K)
Thermal Expansion N/A

Tellurium Magnetic Properties

Magnetic Type Diamagnetic
Curie Point N/A
Mass Magnetic Susceptibility -3.9×10-9
Molar Magnetic Susceptibility -4.98×10-10
Volume Magnetic Susceptibility -2.43e-05

Optical Properties of Tellurium

Refractive Index 1.000991

Acoustic Properties of Tellurium

Speed of Sound 2610 m/s

Tellurium Thermal Properties - Enthalpies and thermodynamics

Refer to table below for Thermal properties of Tellurium

Melting Point 722.66 K (449.51 °C)
Boiling Point 1261 K (988 °C)
Critical Temperature N/A
Superconducting Point N/A

Enthalpies of Tellurium

Heat of Fusion 17.5 kJ/mol
Heat of Vaporization 48 kJ/mol
Heat of Combustion N/A

Tellurium Isotopes - Nuclear Properties of Tellurium

Isotopes of rhodium. Naturally occurring Tellurium has 5 stable isotope - 120Te, 122Te, 124Te, 125Te, 126Te.

Isotope Isotope Mass % Abundance T half Decay Mode
105Te  
106Te  
107Te  
108Te  
109Te  
110Te  
111Te  
112Te  
113Te  
114Te  
115Te  
116Te  
117Te  
118Te  
119Te  
120Te   0.09% Stable N/A
121Te  
122Te   2.55% Stable N/A
123Te   0.89%
124Te   4.74% Stable N/A
125Te   7.07% Stable N/A
126Te   18.84% Stable N/A
127Te  
128Te   31.74%
129Te  
130Te   34.08%
131Te  
132Te  
133Te  
134Te  
135Te  
136Te  
137Te  
138Te  
139Te  
140Te  
141Te  
142Te  

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS13494-80-9
RTECS Number RTECSWY2625000
DOT Hazard Class 6.1
DOT Numbers 2811
EU Number N/A
NFPA Fire Rating 0
NFPA Hazards N/A
NFPA Health Rating 2
NFPA Reactivity Rating 0
Autoignition Point 340 °C
Flashpoint N/A

Database Search

List of unique identifiers to search the element in various chemical registry databases

Database Identifier number
CAS Number - Chemical Abstracts Service (CAS) CAS13494-80-9
CID Number CID6327182
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSWY2625000

List of Elements
1 H - Hydrogen
2 He - Helium
3 Li - Lithium
4 Be - Beryllium
5 B - Boron
6 C - Carbon
7 N - Nitrogen
8 O - Oxygen
9 F - Fluorine
10 Ne - Neon
11 Na - Sodium
12 Mg - Magnesium
13 Al - Aluminium
14 Si - Silicon
15 P - Phosphorus
16 S - Sulfur
17 Cl - Chlorine
18 Ar - Argon
19 K - Potassium
20 Ca - Calcium
21 Sc - Scandium
22 Ti - Titanium
23 V - Vanadium
24 Cr - Chromium
25 Mn - Manganese
26 Fe - Iron
27 Co - Cobalt
28 Ni - Nickel
29 Cu - Copper
30 Zn - Zinc
31 Ga - Gallium
32 Ge - Germanium
33 As - Arsenic
34 Se - Selenium
35 Br - Bromine
36 Kr - Krypton
37 Rb - Rubidium
38 Sr - Strontium
39 Y - Yttrium
40 Zr - Zirconium
41 Nb - Niobium
42 Mo - Molybdenum
43 Tc - Technetium
44 Ru - Ruthenium
45 Rh - Rhodium
46 Pd - Palladium
47 Ag - Silver
48 Cd - Cadmium
49 In - Indium
50 Sn - Tin
51 Sb - Antimony
52 Te - Tellurium
53 I - Iodine
54 Xe - Xenon
55 Cs - Cesium
56 Ba - Barium
57 La - Lanthanum
58 Ce - Cerium
59 Pr - Praseodymium
60 Nd - Neodymium
61 Pm - Promethium
62 Sm - Samarium
63 Eu - Europium
64 Gd - Gadolinium
65 Tb - Terbium
66 Dy - Dysprosium
67 Ho - Holmium
68 Er - Erbium
69 Tm - Thulium
70 Yb - Ytterbium
71 Lu - Lutetium
72 Hf - Hafnium
73 Ta - Tantalum
74 W - Tungsten
75 Re - Rhenium
76 Os - Osmium
77 Ir - Iridium
78 Pt - Platinum
79 Au - Gold
80 Hg - Mercury
81 Tl - Thallium
82 Pb - Lead
83 Bi - Bismuth
84 Po - Polonium
85 At - Astatine
86 Rn - Radon
87 Fr - Francium
88 Ra - Radium
89 Ac - Actinium
90 Th - Thorium
91 Pa - Protactinium
92 U - Uranium
93 Np - Neptunium
94 Pu - Plutonium
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
Metalloid
Nonmetals
Other Nonmetals
Halogens Noble Gas
Metals
Alkali Metals Alkaline Earth Metals
Transition Metals Post-Transition Metals
Lanthanide Actinide