Thallium (play /ˈθæliəm/ THAL-ee-əm) je apilese kemika pelu ami-idamo Tl ati nomba atomu 81.

Thallium, 81Tl
Àdàkọ:Infobox element/symbol-to-top-image/alt
Thallium
Pípè /ˈθæliəm/ (THAL-ee-əm)
Ìhànsójúsilvery white
Ìwúwo átọ̀mù Ar, std(Tl)[204.382204.385] conventional: 204.38
Thallium ní orí tábìlì àyè
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
In

Tl

Nh
fàdákàolómithalliumòjé
Nọ́mbà átọ̀mù (Z)81
Ẹgbẹ́group 13 (boron group)
Àyèàyè 6
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì  [[Àdàkọ:Infobox element/symbol-to-category]]
Ìtò ẹ̀lẹ́ktrọ́nùÀdàkọ:Infobox element/symbol-to-electron-configuration
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 18, 3
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́577 K ​(304 °C, ​579 °F)
Ígbà ìhó1746 K ​(1473 °C, ​2683 °F)
Kíki (near r.t.)11.85 g/cm3
when liquid (at m.p.)11.22 g/cm3
Heat of fusion4.14 kJ/mol
Heat of 165 kJ/mol
Molar heat capacity26.32 J/(mol·K)
 pressure
Atomic properties
Oxidation statesÀdàkọ:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 1.62
Atomic radiusempirical: 170 pm
Covalent radius170±8 pm
Van der Waals radius196 pm
Àdàkọ:Infobox element/spectral lines
Other properties
Natural occurrenceÀdàkọ:Infobox element/symbol-to-occurrence
Crystal structureÀdàkọ:Infobox element/crystal structure
Speed of sound thin rod818 m/s (at 20 °C)
Thermal expansion29.9 µm/(m·K) (at 25 °C)
Thermal conductivity46.1 W/(m·K)
Electrical resistivity0.18 µ Ω·m (at 20 °C)
Magnetic orderingdiamagnetic[1]
Young's modulus8 GPa
Shear modulus2.8 GPa
Bulk modulus43 GPa
Poisson ratio0.45
Mohs hardness1.2
Brinell hardness26.4 MPa
CAS Number7440-28-0
Main isotopes of thallium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
203Tl 29.524% 203Tl is stable with 122 neutrons
204Tl syn 119 Ms
(3.78 y)
β 0.764 204Pb
ε 0.347 204Hg
205Tl 70.476% 205Tl is stable with 124 neutrons
Àdàkọ:Category-inline
| references


ItokasiÀtúnṣe

  1. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.