Tantalum
Tantalum is a hard, blue-grey transition metal, atomic number 73. Extremely corrosion resistant - resistant to virtually all acids at room temperature. Biocompatible. Critical mate…
Elements
Pure substances that cannot be broken down by chemical means
118 chemicals in this category
Technetium
Technetium is a silvery-grey transition metal, atomic number 43, the lightest element with no stable isotopes. First artificially produced element (1937, Lawrence Berkeley Lab). Al…
Tellurium
Tellurium is a brittle, mildly toxic metalloid, atomic number 52. Rare in Earth crust. Imparts a distinct garlic-like odour to breath and sweat even at trace exposures (tellurium b…
Tennessine
Tennessine is a synthetic radioactive element named after Tennessee, USA. First synthesised in 2010 through collaboration between Dubna and Oak Ridge National Laboratory. Expected …
Terbium
Terbium is a soft, silvery-white rare earth metal, atomic number 65. Used in green phosphors for energy-efficient lighting and displays. Terfenol-D (TbDyFe) is a highly magnetostri…
Thallium
Thallium is a soft, grey post-transition metal, atomic number 81. Extremely toxic - tasteless, odourless thallium salts have been used as rat poison and murder weapon. Thallium-201…
Thorium
Thorium is a weakly radioactive actinide metal. It is about three times more abundant than uranium in Earth crust and is considered a potential future nuclear fuel in thorium react…
Thulium
Thulium is a soft, silvery rare earth metal, atomic number 69. The least abundant naturally occurring lanthanide. Tm-170 is a portable X-ray source used in medicine and industry. T…
Tin
Tin is a silvery, malleable post-transition metal, atomic number 50. Has two allotropes: grey tin (alpha, brittle, below 13.2 C) and white tin (beta, normal form). Used since antiq…
Titanium
Titanium is a lustrous, silvery transition metal, atomic number 22. Renowned for its excellent strength-to-weight ratio, corrosion resistance, and biocompatibility. Fourth most abu…
Tungsten
Tungsten is a hard, grey transition metal, atomic number 74. Has the highest melting point of all metals (3422 C) and the highest tensile strength at temperatures above 1650 C. Use…
Uranium
Uranium is a silvery-grey radioactive metal with atomic number 92, the heaviest naturally occurring element. It was discovered in 1789 by Martin Heinrich Klaproth. Uranium has thre…
Vanadium
Vanadium is a hard, silvery-grey transition metal, atomic number 23. Its compounds exhibit a remarkable range of colours as oxidation state changes from +2 to +5. Used in vanadium …
Xenon
Xenon is a rare, heavy, colourless noble gas. Despite its reputation as completely inert, xenon forms compounds with fluorine and oxygen. It is obtained commercially from liquid ai…
Ytterbium
Ytterbium is a soft, malleable silvery lanthanide and rare earth element, also named after Ytterby, Sweden. It has unusual physical properties and shows a valence change under pres…
Yttrium
Yttrium is a silvery-metallic transition metal and rare earth element. Despite its classification, it is found in most rare earth mineral deposits. It is named after Ytterby, Swede…
Zinc
Zinc is a bluish-white metal and the 24th most abundant element in Earth crust. It is an essential trace mineral for all life and the fourth most widely used metal after iron, alum…
Zirconium
Zirconium is a lustrous, grey-white transition metal, atomic number 40. Exceptionally corrosion resistant and has low neutron absorption cross-section, making it ideal for nuclear …