Thallium - Wikipedia
网页Thallium is a chemical element; it has symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently in 1861, in residues of sulfuric acid production.
Thallium - Element information, properties and uses | Periodic …
网页Element Thallium (Tl), Group 13, Atomic Number 81, p-block, Mass 204.38. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Thallium | Chemical Element, Poisonous Metal, Uses & Properties
网页2024年8月27日 · thallium (Tl), chemical element, metal of main Group 13 (IIIa, or boron group) of the periodic table, poisonous and of limited commercial value. Like lead, thallium is a soft, low-melting element of low tensile strength. Freshly cut thallium has a metallic lustre that dulls to bluish gray upon exposure to air.
Thallium | History, Uses, Facts, Physical & Chemical Characteristics
网页Thallium is an abundant element and is present in about 0.7 mg/kg of the Earth’s crust. Thallium does not exist in free elemental form in nature. it mostly exists in the form of ores with other elements, mostly potassium.
Thallium (Tl) - Periodic Table
网页Thallium is a chemical element of the periodic table with chemical symbol Tl and atomic number 81 with an atomic weight of 204.382 u and is classed as post-transition metal and is part of group 13 (boron group). Thallium is solid at room temperature.
铊 - 维基百科，自由的百科全书
网页2024年8月10日 · 铊（ 拼音： tā ，注音： ㄊㄚ ，粤拼： taa1 ；英语： thallium ；源于拉丁语： θαλλός ，转写为thallos，直译为绿芽）是一种化学元素，其化学符号为Tl，原子序数为81，原子量为 204.38 u 。
Thallium (Tl) - Periodic Table
网页Thallium is the 81st element in the periodic table and has a symbol of Tl and atomic number of 81. It has an atomic weight of 204.380 and a mass number of 205. Thallium has eighty-one protons and one hundred twenty-four neutrons in its nucleus, and eighty-one electrons in six shells.
WebElements Periodic Table » Thallium » the essentials
网页Tl: the essentials. Name: thallium. Symbol: Tl. Atomic number: 81. Relative atomic mass (Ar): 204.38 range: [204.382, 204.385] Standard state: solid at 298 K. Appearance: silvery white. Classification: Metallic. Group in periodic table: 13.
Thallium - Periodic Table
网页Thallium - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.
Thallium - Wikiwand
网页Thallium is a chemical element; it has symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently in 1861, in residues of sulfuric acid production.
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