It is the basic unit of all light, carrying the energy E= hf.Įlectron: each electron has a negative charge (-1) with weight so small it’s normally negligible as compared to proton or neutron. Photon: the smallest discrete amount of electromagnetic radiation. The Heisenberg Uncertainty Principle states that it is impossible to determine both the position and the velocity of an object simultaneously.This is not the case with atomic-sized particles, leading scientists to a new understanding about how to envision the location of the electrons within atoms. If you are looking for something with a flashlight, the photons coming from the flashlight are not going to cause the thing you are looking for to move. They behave much more like particles rather than waves. We do not have to worry about the uncertainty principle with large everyday objects because of their mass. Since photons and electrons have nearly the same energy, any attempt to locate an electron with a photon will knock the electron off course, resulting in uncertainty about where the electron is located. This reflected photon causes a change in the path of the electron. The observation of an electron with a microscope requires reflection of a photon off of the electron. The detection of an electron, for example, would be made by way of its interaction with photons of light. The Heisenberg Uncertainty Principle states that it is impossible to determine both the position and the velocity of an electron simultaneously
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