Definition, Betydelse, Synonymer & Anagram | Engelska ordet ASTATINE

Definition av ASTATINE

1. astat

Exempel på hur man kan använda ASTATINE i en mening

• It is the second-most electropositive element, behind only caesium, and is the second rarest naturally occurring element (after astatine).
• Beginning with naturally occurring uranium-238, this series includes the following elements: astatine, bismuth, lead, polonium, protactinium, radium, radon, thallium, and thorium.
• In chemistry, an interhalogen compound is a molecule which contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine, or astatine) and no atoms of elements from any other group.
• The formula is HX where X is one of the halogens: fluorine, chlorine, bromine, iodine, astatine, or tennessine.
• Some elements of the periodic table (namely the halogens, in the Group 17) have this suffix: fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), ending which was continued in the artificially created tennessine (Ts).
• Italian physicists Emilio Segrè, who discovered the elements technetium and astatine, and the antiproton; Bruno Rossi, a pioneer in Cosmic Rays and X-ray astronomy; and other physicists were forced to leave Italy in the 1930s due to Fascist laws against Jews.
• Most authors recognise one or the other, or both, as metalloids; Herman, Hoffmann and Ashcroft, on the basis of relativistic modelling, predict astatine will be a monatomic metal.
• Hydrogen astatide, also known as astatine hydride, astatane, astatidohydrogen or hydroastatic acid, is a chemical compound with the chemical formula HAt, consisting of an astatine atom covalently bonded to a hydrogen atom.
• Astatine is also thought to be capable of forming cations in salts with oxyanions such as iodate or dichromate; this is based on the observation that, in acidic solutions, monovalent or intermediate positive states of astatine coprecipitate with the insoluble salts of metal cations such as silver(I) iodate or thallium(I) dichromate.

Förberedelsen av sidan tog: 310,45 ms.