Lecture 7_Quantum Chemistry
... Non-radiative energy transfer – a quantum mechanical process of resonance between transition dipoles Effective between 10-100 Å only Emission and excitation spectrum must significantly overlap Donor transfers non-radiatively to the acceptor ...
... Non-radiative energy transfer – a quantum mechanical process of resonance between transition dipoles Effective between 10-100 Å only Emission and excitation spectrum must significantly overlap Donor transfers non-radiatively to the acceptor ...
Do your homework on a separate piece of paper, or
... 20. What is meant by the term “wave-particle duality” and to what is it applied? Matter and energy can both act like waves and act like particles. 21. What is a matter wave? It is the wave part of the duality manifest in matter. = h/p. 22. State the de Broglie hypothesis, and then write its mathem ...
... 20. What is meant by the term “wave-particle duality” and to what is it applied? Matter and energy can both act like waves and act like particles. 21. What is a matter wave? It is the wave part of the duality manifest in matter. = h/p. 22. State the de Broglie hypothesis, and then write its mathem ...
Lecture 17: Bohr Model of the Atom
... intensity as smaller wavelengths than what is observed. “The Ultraviolet Catastrophe” ...
... intensity as smaller wavelengths than what is observed. “The Ultraviolet Catastrophe” ...
Electron Configuration Class Notes
... He calculated this proportionality constant to be: 6.626 x 10 J. sec = h = Planck's constant measure of the energy radiated => E = h , 2 h, 3 h, etc. Remember that we can relate to wavelength, so this equation can also be written E = hc / C. Photoelectric effect Work done by Einstein. Any t ...
... He calculated this proportionality constant to be: 6.626 x 10 J. sec = h = Planck's constant measure of the energy radiated => E = h , 2 h, 3 h, etc. Remember that we can relate to wavelength, so this equation can also be written E = hc / C. Photoelectric effect Work done by Einstein. Any t ...
Introduction to Spectroscopy
... For each of these, a discrete quantum “state” and energy-driven transitions between these “states” can be studied (as opposed to a continuous range of energies) ...
... For each of these, a discrete quantum “state” and energy-driven transitions between these “states” can be studied (as opposed to a continuous range of energies) ...
6.4 - Hockerill Students
... prove that the electron behaves like a wave it must have wave properties, such diffraction. To make an electron diffract around an obstacle of size d, its wavelength λ must be comparable to or bigger that d. electron of mass 9.1x10-31kg and speed of 105 m/s will have a wavelength λ = 7.2x10-9m. An ...
... prove that the electron behaves like a wave it must have wave properties, such diffraction. To make an electron diffract around an obstacle of size d, its wavelength λ must be comparable to or bigger that d. electron of mass 9.1x10-31kg and speed of 105 m/s will have a wavelength λ = 7.2x10-9m. An ...
Physics of the Atom
... Estimate the average kinetic energy of whole hydrogen atoms (not just the electrons) at room temperature, and use the result to explain why nearly all H atoms are in the ground state at room temperature, and hence emit no light. ...
... Estimate the average kinetic energy of whole hydrogen atoms (not just the electrons) at room temperature, and use the result to explain why nearly all H atoms are in the ground state at room temperature, and hence emit no light. ...
class slides for Chapter 38
... light is varied and the associated stopping potential Vstop is measured, then the plot of Vstop versus f as shown in the figure is obtained. The photoelectric effect does not occur if the frequency is below a certain cutoff frequency f0 or, if the wavelength is greater than the corresponding cutoff ...
... light is varied and the associated stopping potential Vstop is measured, then the plot of Vstop versus f as shown in the figure is obtained. The photoelectric effect does not occur if the frequency is below a certain cutoff frequency f0 or, if the wavelength is greater than the corresponding cutoff ...
Chapter 6
... Spin Quantum Number Symbolized by ms Indicates the fundamental spin states of an electron in an orbital Values are + ½ and -1/2 ...
... Spin Quantum Number Symbolized by ms Indicates the fundamental spin states of an electron in an orbital Values are + ½ and -1/2 ...
Standard EPS Shell Presentation
... The colors of clothes, paint, and everything else around you come from this property of elements to emit or absorb light of only certain colors. ...
... The colors of clothes, paint, and everything else around you come from this property of elements to emit or absorb light of only certain colors. ...
If electrons did not obey the Pauli exclusion Principle then….
... More photons in one joule of red light than in one joule of blue More photons in one joule of blue light than in one joule of red The same number of photons in one joule of red light as in one joule of blue ...
... More photons in one joule of red light than in one joule of blue More photons in one joule of blue light than in one joule of red The same number of photons in one joule of red light as in one joule of blue ...
From Last Time… - High Energy Physics
... Planetary model and radiation • Circular motion of orbiting electrons causes them to emit electromagnetic radiation with frequency equal to orbital frequency. • Same mechanism by which radio waves are emitted by electrons in a radio transmitting antenna. ...
... Planetary model and radiation • Circular motion of orbiting electrons causes them to emit electromagnetic radiation with frequency equal to orbital frequency. • Same mechanism by which radio waves are emitted by electrons in a radio transmitting antenna. ...
X-Ray standing waves for investigation of periodic multilayers.
... structure consisting of 10 to 200 layer pairs of alternating high- and low-electron density materials, such as Mo and Si. Sufficient uniformity in layer thickness is obtainable in the range between 10 and 150 Å (d-spacing of fundamental diffraction planes from 20 Å to 300 Å). Because of the rather l ...
... structure consisting of 10 to 200 layer pairs of alternating high- and low-electron density materials, such as Mo and Si. Sufficient uniformity in layer thickness is obtainable in the range between 10 and 150 Å (d-spacing of fundamental diffraction planes from 20 Å to 300 Å). Because of the rather l ...
The Egyptian American International School
... 2. Probability maps indicate the likelihood of finding the electron at a given point in space. 3. The size of an atom can be described by a surface that contains 90% of the total electron probability. 11.4 Electron Configurations and Atomic Properties Atomic energy levels are broken down into prin ...
... 2. Probability maps indicate the likelihood of finding the electron at a given point in space. 3. The size of an atom can be described by a surface that contains 90% of the total electron probability. 11.4 Electron Configurations and Atomic Properties Atomic energy levels are broken down into prin ...
Nickel 28 Ni 58.693
... Matter can be broken down into its simple parts called __________. Each element on the periodic table has its own ___________. How many elements can be found naturally? ...
... Matter can be broken down into its simple parts called __________. Each element on the periodic table has its own ___________. How many elements can be found naturally? ...
Arrangement of Electrons in Atoms
... ◦ When certain frequencies of light strike a metal, electrons are emitted. The photoelectric effect refers to the emission of electrons from a metal when light shines on the metal. Electrons are ejected by metals when light shines on them – light waves act ...
... ◦ When certain frequencies of light strike a metal, electrons are emitted. The photoelectric effect refers to the emission of electrons from a metal when light shines on the metal. Electrons are ejected by metals when light shines on them – light waves act ...
Material since exam 3
... a p-shell (except for He). How many electrons do next two inert gas atoms after helium ( neon (Ne) and argon (Ar) ) have. In this range of atomic number the subshells fill in order of increasing angular momentum. ...
... a p-shell (except for He). How many electrons do next two inert gas atoms after helium ( neon (Ne) and argon (Ar) ) have. In this range of atomic number the subshells fill in order of increasing angular momentum. ...
Introduction to Spectroscopy
... of radiation with matter, so the properties of such interactions can be studied ...
... of radiation with matter, so the properties of such interactions can be studied ...
File
... The exponent "2" refers to the total number of electrons in that orbital or sub-shell. In this case, we know that there are two electrons in the spherical orbital at the first energy level. I. Principle Quantum Number (n) and Sublevels The number of sublevels that an energy level can contain is eq ...
... The exponent "2" refers to the total number of electrons in that orbital or sub-shell. In this case, we know that there are two electrons in the spherical orbital at the first energy level. I. Principle Quantum Number (n) and Sublevels The number of sublevels that an energy level can contain is eq ...
Chapter 4 Notes
... • The energy of the electron is greater when it is in orbits farther from the nucleus • The atom achieves the ground state when atoms occupy the closest possible positions around the nucleus • Electromagnetic radiation is emitted when electrons move closer to the nucleus. ...
... • The energy of the electron is greater when it is in orbits farther from the nucleus • The atom achieves the ground state when atoms occupy the closest possible positions around the nucleus • Electromagnetic radiation is emitted when electrons move closer to the nucleus. ...
laser1
... energized, or excited to specific energy levels. • More atoms or molecules are in a higher excited state. • The process of producing a population inversion is called pumping. • Examples: →by lamps of appropriate intensity →by electrical discharge ...
... energized, or excited to specific energy levels. • More atoms or molecules are in a higher excited state. • The process of producing a population inversion is called pumping. • Examples: →by lamps of appropriate intensity →by electrical discharge ...
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.