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AN2 ATOMS
AN2 ATOMS

... The K shell has n = 1, L means n = 2 and so on. Similarly a set of lower case letters s, p, d, f, .. is used to label the value of l. A common way of specifying a subshell is to combine the value of n with the label for l . For example the 3p subshell contains all the states with n = 3 and l = 1. Th ...
Atom cooling, trapping, and quantum manipulation
Atom cooling, trapping, and quantum manipulation

... ultimately led to the invention of the maser and the laser. For a brief discussion of what might be called ‘‘Rabi physics,’’ see the article by Kleppner in this volume. This paper discusses the extension of this pattern of control and study to the external degrees of freedom (position and velocity) ...
Notes follow and parts taken from Physics (6th Edition, Cutnell
Notes follow and parts taken from Physics (6th Edition, Cutnell

Planck`s “quantum of action” from the photoelectric effect (line
Planck`s “quantum of action” from the photoelectric effect (line

... fluorescent screen and only one simple compact test instrument to operate is required. The electron diffraction tube enables the de-Broglie’s principle to be proved experimentally and with considerable accuracy, as a basis for a wave particle dualism (wavicle) applicable to electrons. Theory: Max vo ...
Methane - ARZELORIVAS IS
Methane - ARZELORIVAS IS

Unit 1 science of chemistry
Unit 1 science of chemistry

... elements chemically combined in a fixed proportion. •Represented by chemical formulas using symbols of elements present in compound and subscripts indicated how many atoms of each element is present. Ex. H2O: water ...
Localized Wave Function of the 2D Topological Insulator in a
Localized Wave Function of the 2D Topological Insulator in a

... We investigate the edge state of the Quantum Spin Hall effects which appears in a honeycomb lattice described by the Kane-Mele (KM) model[1]. It is well know that the KM model with a finite spin-orbit interaction is suggested for a 2D topological insulator[2] which shows an insulating gap in a bulk ...
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the solution of boltzmanns constant
the solution of boltzmanns constant

... 1.859222909 x 10-9 kg x v = 25 x 3.20435306 x 10-20 s v = 4.3087263 x 10-10 m/s One coulomb of ether in kg = 1.859222909 x 10-9 kg x 6.24150948 x 1018 = 1.160435741 x 1010kg Current is the momentum of one coulomb of ether, Ether Current I = 5 amps = 1.160435741 x 1010kg x 4.3087263 x 10-10 m/s per o ...
Laser Cooling of Atom
Laser Cooling of Atom

Electrostatics
Electrostatics

... Electrostatics ...
Chem 11 Notes Booklet (pdf version)
Chem 11 Notes Booklet (pdf version)

...  All matter is made up of about 100 elements. Elements are pure substances that cannot be broken down into simpler parts by ordinary chemical means. Each element is composed of a fundamental particle called an atom. Each element has a unique atom and is represented by a symbol (memorize the sheet “ ...
Transparancies for Feynman Graphs
Transparancies for Feynman Graphs

... QED – mediated by spin 1 bosons (photons) coupling to conserved electric charge QCD – mediated by spin 1 bosons (gluons) coupling to conserved colour charge u,d,c,s,t,b have same 3 colours (red,green,blue), so identical strong interactions [c.f. isospin symmetry for u,d], leptons are colourless so d ...
Chemical Measurements
Chemical Measurements

... Moving from AMU to grams • The use of atomic mass units (amu) are impractical in the chemistry lab where the preferred unit of measurement is grams. • Scientists needed to establish a relationship between # of atoms and masses of atoms. ...
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Electrostatics PDF
Electrostatics PDF

... The Nature of Electric Charge Discovery of charge The Greeks first noticed electric charges by rubbing amber with fur. In Greek, “elektron” means amber, and “atomos” means indivisible. Charges are arbitrarily called positive and negative. In most cases, only the negative charge is mobile. Propertie ...
Chapter 2 Elements and Compounds 2.1 The Structure of the Atom
Chapter 2 Elements and Compounds 2.1 The Structure of the Atom

... 2.1b Atomic Number, Mass Number, and Atomic Symbols Atoms of each element can be distinguished by the number of protons in the nucleus. The atomic number (Z) of an element is equal to the number of protons in the nucleus. For example, a carbon atom has six protons in its nucleus, and therefore carbo ...
Long Distance, Unconditional Teleportation of Atomic States V 87, N
Long Distance, Unconditional Teleportation of Atomic States V 87, N

... atoms have absorbed 795 nm photons and stored the respective qubit information in their D levels. We expect that this loading protocol can be run at rates as high as R 苷 500 kHz, i.e., we can get an independent try at loading an entangled photon pair into the two memory elements of Fig. 1 every 2 ms ...
Mass spectrometry powerpoint
Mass spectrometry powerpoint

... elements relative atomic mass (which is given in the periodic ...
Ei otsikkoa
Ei otsikkoa

Quantum Hall trial wave functions and CFT
Quantum Hall trial wave functions and CFT

... The choice of this form for the variational wave function is really where the repulsive interactions between the electrons are included; any f with f (0) = 0 will tend to keep the particles apart. After the assumption of the Jastrow form, the wave functions (10) are determined by three physical requ ...
Integrated atom detector: Single atoms and photon statistics
Integrated atom detector: Single atoms and photon statistics

Full band - Institute of Materials Science
Full band - Institute of Materials Science

Year End Review
Year End Review

... The next two questions deal with the identification and characterization of three elements which we shall call X, Y, and Z. The elements have successive atomic numbers each increasing by one in the order given. Atoms of element Z form stable ions with the formula Z+. 10. Which of the following stat ...
Advanced Quantum Physics - Theory of Condensed Matter
Advanced Quantum Physics - Theory of Condensed Matter

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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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