Learn basic information about what an element is, what they are made of, how and why they are different, and how scientists have organized them...
Learn about elements in chemistry. Discover the element definition in chemistry, what makes an element, parts of an element, and what is the...
Atoms of an element may be produced by the processes offusion, fission, and radioactive decay. All of these are nuclear processes, which means they involve the protons and neutrons in the nucleus of an atom. In contrast, chemical processes (reactions) involve electrons and not nuclei. In fus...
A compound is something composed of two or more separate elements. In chemistry, iron is an element, sulphur is an element, but iron sulphide is a compound. In English, a compound sentence has two independent clauses. Similarly, acompound adjectiveis an adjective with two or more parts (e...
weight gained when elements were oxidized, and he ascribed the result to the combining of the element withoxygen. Theconceptof chemical reactions involving the combination of elements clearly emerged from his writing, and his approach led others to pursue experimental chemistry as a quantitative ...
Uses of Alloys Over 90% of metal used is in the form of alloys. Alloys are used because their chemical and physical properties are superior for an application than that of the pure element components. Typical improvements include corrosion resistance, improved wear, special electrical or magnetic ...
Find the number of elements: how many elements in the periodic table Get information about a chemical element: carbon Specify an element by symbol: Au Specify an element by atomic number: element 92 Compare several elements: silver, gold N, O, F Classes of Elements Learn about classes of el...
A molecular formula is a type of chemical formula that uses symbols of elements from the periodic table and numerical subscripts that reflect the number of atoms of each particular element in the molecular formula. The terms true formula and molecular formula are often used interchangeably. The ...
Crystal Chemistry Inspired Element Ratio Mapping Improves the Understanding of Petrogenesis: Martian Meteorite ExamplesExtended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2006...
Hydrolysis, in chemistry and physiology, a double decomposition reaction with water as one of the reactants. The other reactants, and the products of hydrolysis, may be neutral molecules, as in most hydrolyses involving organic compounds, or ionic molecu