molecule - (physics and chemistry) the simplest structural unit of an element or compound free radical, radical - an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an ...
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited ThesaurusAntonymsRelated WordsSynonymsLegend: Switch tonew thesaurus Noun1. atomic number- the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the ...
(chemistry) The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds. Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom. Atom The smallest...
In the Lewis formula for {eq}ClF_3{/eq}, how many lone pairs are around the central atom? Lewis Structure It is drawn from the molecular formula of the compound. This is otherwise called an electron-dot structure, as electrons are shown as dots. This gives an idea a...
A Scandium Atom is defined as an atom of the element scandium that adopts a pseudo-octahedral geometry with chelating ligands, as described in the provided text. AI generated definition based on: Coordination Chemistry Reviews, 2013 About this pageAdd to MendeleySet alert ...
(ii) Deduce the symbol, including mass number and atomic number, for this atom of element Q.………..………[1]Q10. Geiger and Marsden studied the structure of atoms. The diagram shows part of the equipment, which they used.(i) The block of lead helped to shield the scientists from ra...
If a proton and electron are removed, can the element itself change? What does the reactivity of a compound suggest and how it is determined? What is the maximum number of eletrons that can occupy the 2's orbital? What is the chemistry of iron? For a one-electron atom or io...
Among all the elements that have been discovered to date, carbon is surely the most intriguing element. As the core element of thousands of organic compounds, carbon is associated closely with the origin of life[1]. Carbon-basednanostructures, such as graphene[2],carbon nanotube[3], andfullere...
adding one electron at a time as one stepped to the next higher element. Bohr argued that orbits of increasing radius could accommodate up to a maximum number of electron numbers that, when reached, corresponded to observed horizontal periods of two, eight, eight, eighteen, eighteen, and thirty...
Atom probe field ion microscopy (APFIM) and tomographic atom probe (TAP) have been used to study TiAl-based alloys. The element concentrations, the influence of additional elements such as Cr or Nb as well as the solubility of oxygen in α 2 (Ti 3 Al) and γ (TiAl) phases in compoun...