• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Chemistry Lesson Plans #12
Chemistry Lesson Plans #12

the influence of ligands` vibrational motion on the optical
the influence of ligands` vibrational motion on the optical

... Shulich Faculty of Chemistry, Solid State Institute and Russell Berrie Nanotechnology Institute, Technion, Israel ...
Electron Diffraction
Electron Diffraction

... level any measurement device will only detect particles (cf. 'shot noise', 'collapse of the wave function'), the equations (Schrödinger/Dirac-Equation) that determine the probability to find these particles at a certain position in time and space allow for superposition and interference which are ph ...
Chapter 1 Electronic structure of atoms
Chapter 1 Electronic structure of atoms

... If we solve the Schrödinger equation we get wave functions and corresponding energies. These wave functions are called orbitals The probability density (or electron density) described by an orbital has a characteristic energy and shape. The energy and shape of orbitals are described by three quantum ...
Worksheet 1 Notes - Department of Chemistry | Oregon State
Worksheet 1 Notes - Department of Chemistry | Oregon State

幻灯片 1
幻灯片 1

... A laser is pulsed to provide a very intense beam of light with many photons. The photon energy is half the energy needed to excite the fluorescent molecule so two photons are needed to do the excitation. This can only happen because of the intensity of the beam. • A disadvantage to the confocal micr ...
ppt
ppt

... Periodic table of elements The one-electron approximation is very useful as it allows to understand what happens if we have many electrons accommodated over different levels. Let us take atom with N electrons. Lets us find all discrete levels E1s
WEEK 2: 4 S
WEEK 2: 4 S

... 1. The radius of the orbit increases as the principal quantum number increases. 2. The energy required to ionize the atom increases as the principal quantum number decreases. 3. Light emitted by the excited hydrogen atom corresponds to transitions from orbits of higher principal quantum number to lo ...
Operating Principles
Operating Principles

Chapter 5 PowerPoint
Chapter 5 PowerPoint

Chapter 5 Electrons in Atoms
Chapter 5 Electrons in Atoms

1 - kurtniedenzu
1 - kurtniedenzu

... c. More neutrons d. Fewer neutrons 3. How many electrons are present in the electron-dot diagram of an atom with atomic number 9? a. 2 b. 7 c. 9 d. 11 4. If atom X is represented by 126X and atom Y is represented by 146Y, then X and Y are: a. isotopes of the same element b. isotopes of different ele ...
VSPER, Molecular Orbitals, and Organic Molecules
VSPER, Molecular Orbitals, and Organic Molecules

... • called constructive interference: has a lower energy than the states of the isolated atoms i. anti-bonding orbital (indicated with a superscript asterisk) • electrons tend to spend more of their time not between the nuclei • tends to weaken the bond • called destructive interference: has a higher ...
Rdg: Electron Configuration
Rdg: Electron Configuration

... The number of sublevels that an energy level can contain is equal to the principle quantum number of that level. So, for example, the second energy level would have two sublevels, and the third energy level would have three sublevels. The first sublevel is called an s sublevel. The second sublevel i ...
powerpoint - Philip Hofmann
powerpoint - Philip Hofmann

... Band structures of real materials: Si and GaAs ...
THE PHOTOELECTRIC EFFECT
THE PHOTOELECTRIC EFFECT

... The phototube uses an emitter made of potassium metal. The accepted value for the work function of potassium is 2.24 eV, but there are other sources of voltage in the experiment, such as contact potentials of dissimilar metals, that may distort this value. The collector is a circular wire constructe ...
Q: In which model of the atom do electrons orbit the nucleus? A
Q: In which model of the atom do electrons orbit the nucleus? A

... A: 20 protons, 20 neutrons (for the most common isotope) and 18 electrons ...
3D Schrödinger Eq.
3D Schrödinger Eq.

... – Gives correct energies. – Gives correct angular momentum. – Describes electron as 3D wave of probability. – Quantized energy levels result from boundary conditions. – Schrodinger equation can generalize to multi-electron atoms. How? ...
Visible Spectroscopy
Visible Spectroscopy

...  final ninitial  where RH = 2.178 x 10-18 J, Z is the atomic number of the element, and the n-values are the quantum numbers for the initial (higher n value) and final (lower n value) energy levels of an ...
Transmission Electron Microscopy -TEM
Transmission Electron Microscopy -TEM

... Transmission Electron Microscopy -TEMScanning Electron Microscopy – SEM The first electron microscope was built 1932 by the German physicist Ernst Ruska, who was awarded the Nobel Prize in 1986 for its invention. He knew that electrons possess a wave aspect, so he believed he could treat them as lig ...
Molecular Luminescence Spectroscopy
Molecular Luminescence Spectroscopy

Ch 24: Quantum Mechanics
Ch 24: Quantum Mechanics

... Increasing the number of photons will not change the amount of energy an electron will have, but will increase the number of electrons emitted The momentum of photons is equal to Planck’s constant divided by the wavelength The wavelength of electrons is equal to Planck’s constant divided by the elec ...
Landau levels - UCSB Physics
Landau levels - UCSB Physics

... • Energy levels = Landau levels are n ...
1st Semester Practice Test
1st Semester Practice Test

... a. lose two protons c. lose two electrons b. gain two protons d. gain two electrons 75. When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a __. a. prefix c. Roman numeral following the name b. suffix d. sup ...
Direct Coulomb and Exchange Interaction in Artificial Atoms
Direct Coulomb and Exchange Interaction in Artificial Atoms

... where n 苷 0, 1, 2, . . . is the radial quantum number and l 苷 0, 61, 62, . . . is the quantum number for angular momentum. h̄v0 is the lateral confining energy and h̄vc 苷 eB兾mⴱ is the cyclotron energy. Each FD state is spin degenerate. At B 苷 0 T the FD spectrum has sets of states with increasing de ...
< 1 ... 43 44 45 46 47 48 49 50 51 ... 88 >

Auger electron spectroscopy



Auger electron spectroscopy (AES; pronounced [oʒe] in French) is a common analytical technique used specifically in the study of surfaces and, more generally, in the area of materials science. Underlying the spectroscopic technique is the Auger effect, as it has come to be called, which is based on the analysis of energetic electrons emitted from an excited atom after a series of internal relaxation events. The Auger effect was discovered independently by both Lise Meitner and Pierre Auger in the 1920s. Though the discovery was made by Meitner and initially reported in the journal Zeitschrift für Physik in 1922, Auger is credited with the discovery in most of the scientific community. Until the early 1950s Auger transitions were considered nuisance effects by spectroscopists, not containing much relevant material information, but studied so as to explain anomalies in x-ray spectroscopy data. Since 1953 however, AES has become a practical and straightforward characterization technique for probing chemical and compositional surface environments and has found applications in metallurgy, gas-phase chemistry, and throughout the microelectronics industry.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report