PowerPoint Presentation - Duality of Matter
... named Louis deBroglie proposed that moving matter also has a wave-particle duality defined from wavelength = h/(mass×speed) where h = Plank’s constant = 6 x 10-34 ...
... named Louis deBroglie proposed that moving matter also has a wave-particle duality defined from wavelength = h/(mass×speed) where h = Plank’s constant = 6 x 10-34 ...
FE Review Chemistry - UTSA College of Engineering
... • Element: a substance only composed of one type of atom • Isotope: element with the same number of protons but different atomic masses ...
... • Element: a substance only composed of one type of atom • Isotope: element with the same number of protons but different atomic masses ...
Physical Chemistry II – Exam 1 SOLUTIONS
... 1.362×10–21 J. From this information, determine the value of Planck's constant (in units of J s). [1 Å = 10–10 m] For the photoelectric effect, KE = hν − φ . From this equation, we can see that a plot with kinetic energy on the y-axis and frequency on the x-axis yields a straight line with the slope ...
... 1.362×10–21 J. From this information, determine the value of Planck's constant (in units of J s). [1 Å = 10–10 m] For the photoelectric effect, KE = hν − φ . From this equation, we can see that a plot with kinetic energy on the y-axis and frequency on the x-axis yields a straight line with the slope ...
class slides for Chapter 39
... The restrictions on the values of the quantum numbers for the hydrogen atom, as listed in Table 39-2, are not arbitrary but come out of the solution to Schrödinger’s equation. ...
... The restrictions on the values of the quantum numbers for the hydrogen atom, as listed in Table 39-2, are not arbitrary but come out of the solution to Schrödinger’s equation. ...
effective nuclear charge
... nucleus and repelled by each other outer electrons are shielded from full strength of nucleus ◦ screening effect effective nuclear charge is net positive charge that is attracting a particular electron Z is nuclear charge, S is electrons in lower energy levels ◦ electrons in same energy level contri ...
... nucleus and repelled by each other outer electrons are shielded from full strength of nucleus ◦ screening effect effective nuclear charge is net positive charge that is attracting a particular electron Z is nuclear charge, S is electrons in lower energy levels ◦ electrons in same energy level contri ...
Quantum Mechanics I Physics 325 Importance of Hydrogen Atom
... According to classical physics, an electron accelerating around its orbit should emit radiation. This loss of energy should be accompanied by a decrease in orbit speed and a spiraling of the electron into the nucleus! ...
... According to classical physics, an electron accelerating around its orbit should emit radiation. This loss of energy should be accompanied by a decrease in orbit speed and a spiraling of the electron into the nucleus! ...
Rutherford Model 1911 - University of St Andrews
... Inadequacies of the Bohr Theory 1. Does well to describe hydrogen, but can be extended only to 1-electron atoms, i.e. hydrogen-like, with higher Z values. Can treat alkali atoms with some success, but only because they have 1 electron only outside closed shells. Fails to account for spectra of othe ...
... Inadequacies of the Bohr Theory 1. Does well to describe hydrogen, but can be extended only to 1-electron atoms, i.e. hydrogen-like, with higher Z values. Can treat alkali atoms with some success, but only because they have 1 electron only outside closed shells. Fails to account for spectra of othe ...
Creating laser light
... about 10 ns and happens spontaneously. Spontaneous decay often leads to spontaneous emission of photons that have exactly the same frequency as the photons that excited the electrons in the first place. Light created in this way radiates from the atoms in random directions but at well-defined wavele ...
... about 10 ns and happens spontaneously. Spontaneous decay often leads to spontaneous emission of photons that have exactly the same frequency as the photons that excited the electrons in the first place. Light created in this way radiates from the atoms in random directions but at well-defined wavele ...
Many-Electron Atoms Thornton and Rex, Ch. 8
... A careful analysis involving L and S in multi-electron atoms is very complicated. Hund’s Rules (Empirical rules for filling a subshell, while minimizing the energy) 1) The total Spin should be maximized (without violating Pauli Exclusion Principle). 2) Without violating Rule 1, the Orbital Angular m ...
... A careful analysis involving L and S in multi-electron atoms is very complicated. Hund’s Rules (Empirical rules for filling a subshell, while minimizing the energy) 1) The total Spin should be maximized (without violating Pauli Exclusion Principle). 2) Without violating Rule 1, the Orbital Angular m ...
Atoms and Nuclei
... • Only certain orbits are “allowed” to an electron. Consequently, only certain discrete amounts of energy can be absorbed or emitted as an electron moves from one “orbit” to another. This is why a gas emits or absorbs light only at certain discrete frequencies or wavelengths (cf. “spectral lines”). ...
... • Only certain orbits are “allowed” to an electron. Consequently, only certain discrete amounts of energy can be absorbed or emitted as an electron moves from one “orbit” to another. This is why a gas emits or absorbs light only at certain discrete frequencies or wavelengths (cf. “spectral lines”). ...
A Thumbnail Review of Regents Chemistry
... Electronegativity = attraction for a pair of bonded electrons Ionization Energy = energy needed to remove a specific electron Metals: to the left of the staircase, including Al and Po. All solid except for Hg Metalloids: on the staircase: B, Si, Ge, As, Sb, Te, At: fair conductors but brittle Non-Me ...
... Electronegativity = attraction for a pair of bonded electrons Ionization Energy = energy needed to remove a specific electron Metals: to the left of the staircase, including Al and Po. All solid except for Hg Metalloids: on the staircase: B, Si, Ge, As, Sb, Te, At: fair conductors but brittle Non-Me ...
Table showing examples of Complex ions with their bond
... white light into light whose hue () is composed of the colours complementary those which have absorbed. The d-level is split into two when a complex ion is formed and difference in energy between these two levels is such that visible light can excite an electron from the lower to the higher level; ...
... white light into light whose hue () is composed of the colours complementary those which have absorbed. The d-level is split into two when a complex ion is formed and difference in energy between these two levels is such that visible light can excite an electron from the lower to the higher level; ...
Laser–Induced Control of Condensed Phase Electron Transfer
... Dramatic perturbations of the “one-way” rate constants may be obtained by varying the laser field intensity: [Activationless reaction, Er=1eV] ...
... Dramatic perturbations of the “one-way” rate constants may be obtained by varying the laser field intensity: [Activationless reaction, Er=1eV] ...
e - Colutron
... electron falls in to a closer orbit, potential energy is lost to radiation. The amount of energy escaped, in the form of radiation equals the energy difference between the orbits. In the diagram the calculated wavelengths of the radiation liberated are listed next to each arrow. The spectrum of wave ...
... electron falls in to a closer orbit, potential energy is lost to radiation. The amount of energy escaped, in the form of radiation equals the energy difference between the orbits. In the diagram the calculated wavelengths of the radiation liberated are listed next to each arrow. The spectrum of wave ...
Document
... Area under absorption peak ~ # of nuclei resonating at that But: nuclei must relax to equilibrium between pulses, not generally true of 13C NMR! ...
... Area under absorption peak ~ # of nuclei resonating at that But: nuclei must relax to equilibrium between pulses, not generally true of 13C NMR! ...
Electrons in Atoms
... 6. Which of the following best describes the Heisenberg uncertainty principle? a. Light behaves like a particle and like a wave. b. The shorter the wavelength, the higher the frequency. c. It is impossible to know both the velocity and the position of a particle at the same time. d. You cannot measu ...
... 6. Which of the following best describes the Heisenberg uncertainty principle? a. Light behaves like a particle and like a wave. b. The shorter the wavelength, the higher the frequency. c. It is impossible to know both the velocity and the position of a particle at the same time. d. You cannot measu ...
Chapter_7_Electronic_Structure_of_Atoms
... and the frequency of light is given by Equation (7.4). The minimum frequency of light needed to dislodge an electron is the point where the kinetic energy of the ejected electron is zero. (b) Knowing both the work function and the frequency of light, we can solve for the kinetic energy of the ejecte ...
... and the frequency of light is given by Equation (7.4). The minimum frequency of light needed to dislodge an electron is the point where the kinetic energy of the ejected electron is zero. (b) Knowing both the work function and the frequency of light, we can solve for the kinetic energy of the ejecte ...
Chapter_7_Electronic_Structure_of_Atoms
... and the frequency of light is given by Equation (7.4). The minimum frequency of light needed to dislodge an electron is the point where the kinetic energy of the ejected electron is zero. (b) Knowing both the work function and the frequency of light, we can solve for the kinetic energy of the ejecte ...
... and the frequency of light is given by Equation (7.4). The minimum frequency of light needed to dislodge an electron is the point where the kinetic energy of the ejected electron is zero. (b) Knowing both the work function and the frequency of light, we can solve for the kinetic energy of the ejecte ...
Final Review
... the energy of a rigid rotator? Be able to calculate the energy of any level or the difference in the energy between two levels. What is the degeneracy of the lth level? You should know Schrodinger’s equation for the hydrogen atom, and to recognize the solutions, the energy eigenfunctions and energie ...
... the energy of a rigid rotator? Be able to calculate the energy of any level or the difference in the energy between two levels. What is the degeneracy of the lth level? You should know Schrodinger’s equation for the hydrogen atom, and to recognize the solutions, the energy eigenfunctions and energie ...
Periodic Table Review Key
... Would atom A gain or lose valence electrons? __lose__ Would atom B gain or lose valence electrons? __neither__ ...
... Would atom A gain or lose valence electrons? __lose__ Would atom B gain or lose valence electrons? __neither__ ...
X-ray fluorescence
X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.