E - Purdue Physics
... quantized energy levels (K+U) for an atom. Initially the atom is in its ground state (symbolized by a dot). An electron with kinetic energy 6 eV collides with the atom and excites it. What is the remaining kinetic energy of the electron? ...
... quantized energy levels (K+U) for an atom. Initially the atom is in its ground state (symbolized by a dot). An electron with kinetic energy 6 eV collides with the atom and excites it. What is the remaining kinetic energy of the electron? ...
November 18
... and how much energy does it have? To find frequency, use first formula, c=lambda x frequency Frequency = 3x 108 m/s / 700 x 10-9 meters = 4.29 x 1014 Hz To find Energy, plug it into the second formula: E = hf = (6.6 x 10-34) x (4.29 x 1014 Hz) = 2.82 x 10-19 Joules What is Fire? Excited electrons wh ...
... and how much energy does it have? To find frequency, use first formula, c=lambda x frequency Frequency = 3x 108 m/s / 700 x 10-9 meters = 4.29 x 1014 Hz To find Energy, plug it into the second formula: E = hf = (6.6 x 10-34) x (4.29 x 1014 Hz) = 2.82 x 10-19 Joules What is Fire? Excited electrons wh ...
1 EM Waves Intro
... The wave model of light fails when we shine light on zinc, which causes a release of photoelectrons. Increasing the intensity of the light does not always cause more electrons to be released, Emission depends on frequency ...
... The wave model of light fails when we shine light on zinc, which causes a release of photoelectrons. Increasing the intensity of the light does not always cause more electrons to be released, Emission depends on frequency ...
Chapter 5 PPT/Notes A
... • Frequency is how many waves per unit of time pass a point. • Period is how long it takes for a wavelength to pass a point. • F=1/period ...
... • Frequency is how many waves per unit of time pass a point. • Period is how long it takes for a wavelength to pass a point. • F=1/period ...
Chapter 27
... Each photon can give all its energy to an electron in the metal The maximum kinetic energy of the liberated photoelectron is KEmax = hƒ – Φ Φ is called the work function of the metal ...
... Each photon can give all its energy to an electron in the metal The maximum kinetic energy of the liberated photoelectron is KEmax = hƒ – Φ Φ is called the work function of the metal ...
Light-matter interaction Hydrogen atom Ground state – spherical
... excite electrons directly to lasing level because we have stimulated excitation , which has the same rate as stimulated emission ...
... excite electrons directly to lasing level because we have stimulated excitation , which has the same rate as stimulated emission ...
Quantum Mechanical Model of the Atom
... The Compton Effect: When a high energy xray photon collides with a “free electron”, it gives some of its energy to the electron and a lower energy photon scatters off the electron. ...
... The Compton Effect: When a high energy xray photon collides with a “free electron”, it gives some of its energy to the electron and a lower energy photon scatters off the electron. ...
Chapter 4 Spectroscopy
... passes through a cool gas, atoms of the gas will absorb the same frequencies they emit ...
... passes through a cool gas, atoms of the gas will absorb the same frequencies they emit ...
Modern Physics - Politechnika Wrocławska
... If the energy of a photon is less than the work function f, the photon cannot give enough energy to the electron to leave the surface Kmax does not depend on light intensity, because doubling the number of photons would only double the number of electrons and not double their energy Kmax increases w ...
... If the energy of a photon is less than the work function f, the photon cannot give enough energy to the electron to leave the surface Kmax does not depend on light intensity, because doubling the number of photons would only double the number of electrons and not double their energy Kmax increases w ...
(n=1).
... Hydrogen-like energy levels (relative to a free electron that wanders off): mk 2e4 Z 2 13.6 Z 2 En ...
... Hydrogen-like energy levels (relative to a free electron that wanders off): mk 2e4 Z 2 13.6 Z 2 En ...
HW-1-Ch1-Atomic-structure-W16
... 8. How long would it take for a sample of 222Rn that weighs 0.750 g to decay to 0.100 g? Assume a half-life for 222Rn of 3.823 days? ...
... 8. How long would it take for a sample of 222Rn that weighs 0.750 g to decay to 0.100 g? Assume a half-life for 222Rn of 3.823 days? ...
Tutorial 7
... Consider the valence electrons of Al (period 3, group 13) and indicate with the aid of an orbital diagram whether the atom is paramagnetic or diamagnetic. ...
... Consider the valence electrons of Al (period 3, group 13) and indicate with the aid of an orbital diagram whether the atom is paramagnetic or diamagnetic. ...
Mathematical Methods of Physics – Fall 2010 – Dr
... Smallest photon wavelength for maximum electron energy loss: h = hc/ = K = eV where V is the accelerating potential for the electron. Ex p.88: Typical V~ 10,000 volts yields continuous X-ray distributions – Fig 3.24 p.89 Bremsstrahlung. Pair production (89) Photon disappears and produces particl ...
... Smallest photon wavelength for maximum electron energy loss: h = hc/ = K = eV where V is the accelerating potential for the electron. Ex p.88: Typical V~ 10,000 volts yields continuous X-ray distributions – Fig 3.24 p.89 Bremsstrahlung. Pair production (89) Photon disappears and produces particl ...
Review Sheet
... Specific heat capacity Endothermic vs. exothermic Stoichiometry using energy (using enthalpy of reaction and balanced chemical reactions) Calculating H using Hess’s Law, Enthalpy Diagrams, and/or H° of formations Calorimetry calculations to determine H and q Standard States and enthalpy of format ...
... Specific heat capacity Endothermic vs. exothermic Stoichiometry using energy (using enthalpy of reaction and balanced chemical reactions) Calculating H using Hess’s Law, Enthalpy Diagrams, and/or H° of formations Calorimetry calculations to determine H and q Standard States and enthalpy of format ...
Exam topics-- understand and be able to apply ideas like in
... 6. Interference pattern because goes through both slits as a wave, but intensity of wave reflects probability of finding photon. 7. Quantization of energy in atoms, and how established experimentally. 8. Atomic spectra and connection with electron energy levels in atoms. 9. Atomic spectra as signatu ...
... 6. Interference pattern because goes through both slits as a wave, but intensity of wave reflects probability of finding photon. 7. Quantization of energy in atoms, and how established experimentally. 8. Atomic spectra and connection with electron energy levels in atoms. 9. Atomic spectra as signatu ...
A system consist of two particles,each of which has two possible
... 1. A system consist of two particles,each of which has two possible quantum stats with energies Eo and 2Eo .Write the complete expression for the partition function if: (a) The particle are distinguishable. (b) The particle obey Maxwell-Boltzmann statistics. (c) The particle obey Fermi-Dirac statist ...
... 1. A system consist of two particles,each of which has two possible quantum stats with energies Eo and 2Eo .Write the complete expression for the partition function if: (a) The particle are distinguishable. (b) The particle obey Maxwell-Boltzmann statistics. (c) The particle obey Fermi-Dirac statist ...
Quantum Mechanics
... Difference between energy states always some multiple of Planck’s constant ...
... Difference between energy states always some multiple of Planck’s constant ...
honors-chapter6-reading
... 2. Explain the relationship between quantum of energy and Planck’s constant. Be sure to include the equation for energy in your discussion. 3. Explain the photoelectric effect and role of photons. 4. Why is light (electromagnetic radiation) described as having both wavelike and particle-like charact ...
... 2. Explain the relationship between quantum of energy and Planck’s constant. Be sure to include the equation for energy in your discussion. 3. Explain the photoelectric effect and role of photons. 4. Why is light (electromagnetic radiation) described as having both wavelike and particle-like charact ...
Chapter 29: Light Waves Interference Constructive Interference
... of a ping-pong ball of mass 2 grams after it has been slammed across the table at a speed of 5 m/s? ...
... of a ping-pong ball of mass 2 grams after it has been slammed across the table at a speed of 5 m/s? ...
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.