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Clathrates - An Exploration of the Chemistry of Caged Compounds
Clathrates - An Exploration of the Chemistry of Caged Compounds

... molecules of natural gas, mainly methane(CH4 ). Water crystallizes in the isometric crystallographic system (cubic lattice structure) rather than the hexagonal system of normal ice. The gases enclosed may be Ar, Kr, Xe, e1 2, H 2S, N 2, 02 and hydrocarbons like methane, ethane, and propane. The stru ...
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... molecular structures along with various orbital, spin and nuclear interactions). (2) Applied study of environmental properties (e.g., remote sensing of atmospheric parameters, chemical analysis, etc.). The main contents are identification of chemical composition and measurement of their quantity usi ...
A dedicated missionary - Homepage of the Quantum History Project
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... charge. With these two principles, Larmor created a theory of ether and matter, in which electrons, positive and negative, were both the centres of radial strain in the ether, thus accounting for the electromagnetic phenomena in the ether, and the origin of all inertial mass. As Warwick (2003a) say ...
Conservation of Lateral Momentum in Heterostructure
Conservation of Lateral Momentum in Heterostructure

Oxidation numbers
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... Redox Reactions In fact, oxidation never takes place on its own - nor does reduction. When one substance is oxidised in a reaction, another one is reduced. A Redox reaction is one in which both reduction and oxidation take place. To work out which element is oxidised and which is reduced in a reacti ...
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HKDSE Physics Notes Waves Mechanics Mechanics Electricity

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Two-dimensional momentum imaging of Rydberg states using half-cycle pulse ionization

... This phenomenon is not observed in the measurements shown in Figs. 3共a兲 and 3共b兲 reflecting that this strong Coulomb scattering may be a product of the trajectory calculations involving a point charge. Both experimental data and calculations show that the fact that the interaction is not perfectly s ...
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The Potential Contribution of Organic Salts to New

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Entanglement purification for Quantum Computation

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solutions - chem.msu.su

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Molecular-scale Electronics

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Atomic theory



In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms.The word atom comes from the Ancient Greek adjective atomos, meaning ""uncuttable"". 19th century chemists began using the term in connection with the growing number of irreducible chemical elements. While seemingly apropos, around the turn of the 20th century, through various experiments with electromagnetism and radioactivity, physicists discovered that the so-called ""uncuttable atom"" was actually a conglomerate of various subatomic particles (chiefly, electrons, protons and neutrons) which can exist separately from each other. In fact, in certain extreme environments, such as neutron stars, extreme temperature and pressure prevents atoms from existing at all. Since atoms were found to be divisible, physicists later invented the term ""elementary particles"" to describe the ""uncuttable"", though not indestructible, parts of an atom. The field of science which studies subatomic particles is particle physics, and it is in this field that physicists hope to discover the true fundamental nature of matter.
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