electron

  1. A

    (Photoelectric effect) Finding velocity of ejected electron given wavelengths

    Hey, I'm in my senior year of highschool and I'm stuck on this problem that deals with things I haven't even learned (Canadian education system for ya). It has to do with the photoelectric effect. Given the wavelengths of an X-ray before and after it strikes an unknown metal...
  2. K

    Magnetic field of a spinning electron?

    What sort of magnetic field does a stationary spinning electron have? Is it the same as the magnetic field of a rotating sphere or spherical shell?
  3. H

    Tramp and Electron

    The tramp hug the electron and go to a new continent and continue the research of current. There is no wire yet there. He has to establish a coordinate system on the earth. He open his arms and the electron drop. It's said that it can be seen as single current. Because the electron is...
  4. avito009

    Eureka!! Electron cloud to the graveyard.

    We know higgs bosons exist but they decay into fermions so nobody has actually seen it. Large Hadron Collider experiment proves that higgs bosons follow Heisenberg Uncertainty Principle. I have read in many places that higgs bosons follow Heisenberg Uncertainty Principle. So here the box is not...
  5. K

    Ground state energy of an electron

    Hi, I have this exercise that I dont understand and I may need some help: Find the width L of one dimensional box (infinite square well) for which the ground state energy of an electron in the box equals the absolute value of the ground state in hydrogen atom. Express the units of Bohr radius...
  6. F

    Is every electron unique?

    Let's imagine a simple thought experiment. There is a container with hydrogen and a container with helium. Let's take some atoms from both containers and detach electrons from them. Then mix those electrons. Is there any way to tell for sure which electrons come from helium atoms and which ones...
  7. K

    Does an electron really "decide" to accelerate by emitting a photon?

    I saw this comment on another forum Does an electron really "decide" to lose energy by emitting a photon or does the fact that it loses energy cause it to deaccelerate and thereby cause a disturbance in its electromagnetic field which rather causes a photon? Edit: Title should have read...
  8. timemachine2

    Can any element have the electron energy levels of glass.

    I am hoping that electrons in any element have can have energy levels, or shell levels that do not excite photons of light, like in glass, and other transparent materials. Maybe you could use laser light with a certain intensity to get the electron to the shell level you wanted, the shell level...
  9. C

    Electron transitions

    The light source for an experiment is a discharge lamp containing excited atoms which emit light at several wavelengths. The three lowest energy levels of one of these atoms is n = 1, 2 and 3. Electron transitions between these energy levels can produce three different wavelengths of...
  10. N

    Shrodinger's Equation for Interactions between a magnetic monopole and an electron

    OK so I've been stuck on a part of my project for university. I'm currently going through these notes and am stuck getting from 28 to 30. https://drive.google.com/open?id=0Bx-rbxxXL_5dYVhTTUREYzFRRTg I've got this so far I don't know how to get any further or if I've gone wrong somewhere...
  11. timemachine2

    if X rays were combined with red light together, could the electron not get excited,

    exited in the electron. Can you tell me what would be the outcome of this light experiment. So you mix X-rays with red light, the X-rays excite the electron to a higher shell level 2, or 3. Then the red light with the shortest wavelength, when it hits the electron as the electron is in shell 2...
  12. timemachine2

    If you raise the electron to other higher shell states, can light transmission throug

    -h a SOLID BLACK opaque object. So the energy levels of EM waves increase asfrom radio to X-rays, to gamma waves. If put the electron in the highest shell, or a shell second to the highest, then shine a wavelength of light, that has the lowest wavelength, which is red light. So you shine this...
  13. timemachine2

    Do you know the electron energy levels for silicon, and sodium, and calcium.

    Glass is made from 75% silicone, sodium, and calcium. So can you say that glass electron energy levels are for these elements. Do you know the energy levels for electrons for these elements, silicone, sodium, and calcium. For the electron in the ground state to get excited by light, and to...
  14. timemachine2

    Is this description for silicon in glass how much eV the electron needs to leave the

    ... ground state, and move to shell 2. Energy gap 1.12 eV? and also, Energy separation (EΓL) 4.2 eV Maybe its not the same silicone that goes into glass. When I Search for glass electron shell eV no websites get to the point with the answer. If I get a idea how much glass electrons need to get...
  15. timemachine2

    Does anybody know the energy shells eV for glass, and SOLID carbon

    Glass does not absorb any light, exept UV. but what is the eV for the glass electron to get excited and leave the ground state, and move up to shell level 2, or energy band 2. Also when carbon electrons are in the ground state, how much eV from light or any other EM radiation does it take for...
  16. timemachine2

    Energy bands, or amount of electrons in shells that effects absortion in absortion, a

    Would every solid object be transparent invisible if the electron never got exited fr Would every solid object be transparent invisible if the electron never got exited from the ground state, or shell level 1.? If it were possible to stop a electrons from getting excited in atoms, from all...
  17. M

    Need help with: Absorption of electrons/photons

    Hello! I'm not an english speaker, but I really need help with a question. I'll try to translate it as best as I can. Explain what happens when an electron with kinetic energy=1.12aJ collides with a simple mercury atom. What happens if a photon with the energy 1.12aJ collides with the atom...
  18. K

    The pseudo-orbiting electron

    If an electron is orbiting around a hydrogen atom then what is holding it in orbit? The coulomb force? If there is a force why is there also not acceleration, even acceleration from a centripetal force? I know this would cause the electron to plumet into the nucleus as it radiated energy...
  19. B

    【exam] electron's angular velocity

    I only know w= eB/m, and how can I calculate dw? ------------------------------------------------ As described in the Bohr model, an electron is circularly orbiting a proton in a hydrogen atom with radius r and velocity v. The orbital angular momentum of the electron is in the + z...
  20. kelsiu

    Average drift velocity of electron in conductor

    I have a question on the derivation of the average drift velocity in a conductor: drift velocity is the average velocity which a free charge moving in a conductor has due to the influence of an electric field applied to the conductor. In a metal, the free charge will be an electron. As they...