What type of element is Thulium?
What type of element is Thulium?
Thulium is a lanthanide element, it has a bright silvery-gray luster and can be cut by a knife. It is the least abundant of the rare earths and its metal is easy to work.
Is Thulium a metalloid?
Characteristics: Thulium is a bright, soft, malleable, silvery-gray metal. It is a rare earth metal and is one of the least abundant. The metal tarnishes slowly in dry air to form the oxide and reacts with water to form the hydroxide and hydrogen gas.
What is astatine element family?
Astatine is a member of the halogen family, elements in Group 17 (VIIA) of the periodic table. It is one of the rarest elements in the universe.
What is the family of cobalt?
Cobalt is a lustrous very hard silvery metal belonging to a group called the “transition metals”. It is one of only 3 ferromagnetic transition elements along with iron and nickel.
What is thulium found in?
What element reacts with thulium?
Thulium metal reacts with all the halogens to form thulium(III) halides. So, it reacts with fluorine, F2, chlorine, Cl2, bromine, I2, and iodine, I2, to form respectively thulium(III) bromide, TmF3, thulium(III) chloride, TmCl3, thulium(III) bromide, TmBr3, and thulium(III) iodide, TmI3.
What is astatine other name?
In 1940, the Swiss chemist Walter Minder announced the discovery of element 85 as the beta decay product of radium A (polonium-218), choosing the name “helvetium” (from Helvetia, the Latin name of Switzerland).
What is cobalt?
Cobalt is commonly used as a binding agent in the manufacture of ‘hard’ metals with increased wear resistance such as drills and cutting tools. It is also found in: Jewellery [see Jewellery allergy] Metal household items (eg, cutlery, zippers, coins, keys,)
What element is in period 4 family 9?
Cobalt. Cobalt (Co) is an element in group 9. Cobalt is commonly used in pigments, as many compounds of cobalt are blue in color.
What is thulium used for in everyday life?
Uses of Thulium Thulium is used as a source of radiation from portable X-ray devices and in nuclear reactions. Despite being slightly expensive, superconductors of high temperature use thulium. It is used for manufacturing ferrites, ceramic magnetic materials for microwave items.
What does thulium symbolize?
Thulium is a chemical element that has the symbol Tm and atomic number 69. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices and in solid-state lasers. It has no significant biological role and is not particularly toxic.
What does thulium mean?
Freebase(0.00 / 0 votes)Rate this definition: Thulium. Thulium is a chemical element that has the symbol Tm and atomic number 69. It is the second least abundant of the lanthanides after promethium, which is only found in trace quantities on Earth. Thulium is an easily workable metal with a bright silvery-gray luster.
What does the name thulium mean?
thulium (n.) 1879, Modern Latin, from thulia (thulite), name of an earth found in Scandinavia, from which the element was identified in 1879 by Swedish geologist Per Tedor Cleve (1840-1905), from Thule, which sometimes was identified as Scandinavia. With metallic element ending -ium.
What is the electron configuration for thulium?
Thulium: properties of free atoms. Thulium atoms have 69 electrons and the shell structure is 220.127.116.11.8.2. The ground state electron configuration of ground state gaseous neutral thulium is [Xe].4f13.6s2 and the term symbol is 2F7/2.
What is the chemical symbol for thulium?
Thulium. Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and third-last element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds; because it occurs so late in the series, however,…