|MadSci Network: Physics|
Take Hydrogen for example. It has an ionization potential of 13.6ev. If an electron or photon with that much kinetic energy strikes the electron, it will be knocked out the potential well. But what about an electric field. At what point is the 13.6ev referenced to? In terms of volts/meter. Is the 13.6ev referenced to the Bohr radius for each orbital? Certainly 13.6ev/meter won't pull the electron off. At what distance from the electron you want to remove is the voltage measured? Does it take an e-field of 2.72 x 10(11) v/m to ionize hydrogen, which is 27.2 ev/Angstrom?
Re: What is the reference point when measuring ionization potentials of atoms
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