Template:Infobox tellurium

Tellurium, ₅₂Te

File:Tellurium2.jpg
Tellurium
Pronunciation	/tɛˈljʊəriəm/ ​(te-LURE-ee-əm)
Appearance	silvery lustrous gray (crystalline), brown-black powder (amorphous)
Standard atomic weight Ar°(Te)
	127.60±0.03 127.60±0.03 (abridged)
Tellurium in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Se ↑ Te ↓ Po antimony ← tellurium → iodine
Atomic number (Z)	52
Group	group 16 (chalcogens)
Period	period 5
Block	p-block
Electron configuration	[Kr] 4d10 5s2 5p4
Electrons per shell	2, 8, 18, 18, 6
Physical properties
Phase at STP	solid
Melting point	722.66 K ​(449.51 °C, ​841.12 °F)
Boiling point	1261 K ​(988 °C, ​1810 °F)
Density (at 20° C)	6.237 g/cm3
when liquid (at m.p.)	5.70 g/cm3
Heat of fusion	17.49 kJ/mol
Heat of vaporization	114.1 kJ/mol
Molar heat capacity	25.73 J/(mol·K)
Vapor pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K)   (775) (888) 1042 1266
Atomic properties
Oxidation states	common: −2, +2, +4, +6 −1,? 0,? +1,? +3,? +5
Electronegativity	Pauling scale: 2.1
Ionization energies	1st: 869.3 kJ/mol 2nd: 1790 kJ/mol 3rd: 2698 kJ/mol
Atomic radius	empirical: 140 pm
Covalent radius	138±4 pm
Van der Waals radius	206 pm
Color lines in a spectral range Spectral lines of tellurium
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal (hP3)
Lattice constants	Hexagonal crystal structure for tellurium a = 445.59 pm c = 592.75 pm (at 20 °C)
Thermal expansion	19.0×10−6/K (at 20 °C)
Thermal conductivity	1.97–3.38 W/(m⋅K)
Magnetic ordering	diamagnetic
Molar magnetic susceptibility	−39.5×10−6 cm3/mol (298 K)
Young's modulus	43 GPa
Shear modulus	16 GPa
Bulk modulus	65 GPa
Speed of sound thin rod	2610 m/s (at 20 °C)
Mohs hardness	2.25
Brinell hardness	180–270 MPa
CAS Number	13494-80-9
History
Naming	after Roman Tellus, deity of the Earth
Discovery	Franz-Joseph Müller von Reichenstein (1782)
First isolation	Martin Heinrich Klaproth
Isotopes of tellurium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 120Te 0.09% stable 121Te synth 19.31 d ε 121Sb 122Te 2.55% stable 123Te 0.89% stable 124Te 4.74% stable 125Te 7.07% stable 126Te 18.8% stable 127Te synth 9.35 h β− 127I 128Te 31.7% 2.2×1024 y β−β− 128Xe 129Te synth 69.6 min β− 129I 130Te 34.1% 7.91×1020 y β−β− 130Xe

Te · Tellurium
Sb ← ibox Sb	iso 52 Te  [] IB-Te [] IBisos []	→ I ibox I
File:Symbol category class.svg cat:Te (0) File:Symbol category class.svg cat:Te-isotopes (0) File:Commons-logo.svg Commons File:Wikidata-logo.svg Wikidata:Q1100 File:Wiktionary-logo.svg Wiktionary
indexes by PT (page)

child table, as reused in {IB-Te}
Main isotopes of tellurium
Main isotopes Decay abun­dance half-life (t1/2) mode pro­duct 120Te 0.09% stable 121Te synth 19.31 d ε 121Sb 122Te 2.55% stable 123Te 0.89% stable 124Te 4.74% stable 125Te 7.07% stable 126Te 18.8% stable 127Te synth 9.35 h β− 127I 128Te 31.7% 2.2×1024 y β−β− 128Xe 129Te synth 69.6 min β− 129I 130Te 34.1% 7.91×1020 y β−β− 130Xe

Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt)	caption: alt:
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
most stable isotope
File:Notification-icon-Wikidata-logo.svg Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Cat:data sets (0) · (this table: )

References

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