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a free electron may absorb a photon only if its parity changes
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∙ 14y ago
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Compton scattering is defined as what?
Compton scattering is an inelastic scattering of a photon by a free charged particle, usually an electron. It results in a decrease in energy of the photon.
An atom can be excited if it?
thermal agitation, electron impact, and photon impact
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
When an electron drops from a higher energy state to a lower energy state?
A photon is emitted when an electron falls from a higher to lower orbital. A photon is an elementary particles, the quantum of light and all other forms of electromagnetic radiation.
Why there is a cutoff requency in the photoelectric effect?
In any circumstance where a threshold of energy is required to free an electron from a bound state, an incoming photon must have at least that energy to do the job. The energy of a photon is proportional to the frequency of the light, so the minimum energy corresponds to a minimum frequency of the light, or maximum wavelength necessary to free an electron. This observation was a major step in the development of radiation theory (Einstein).
How light is absorb?
By the agitation of an electron by a photon.
Can the electron in the ground state of hydrogen absorb a photon of energy 13.6eV and greater than 13.6eV?
yes , the electron in the ground state of the hydrogen atom will absorb a photon of energy 13.6ev but not greater than 13.6 ev . because 13.6 ev is the energy which excites the hydrogen atom
Compton scattering is defined as what?
Compton scattering is an inelastic scattering of a photon by a free charged particle, usually an electron. It results in a decrease in energy of the photon.
What determines which photon an atom can absorb or emit?
Generally if they are of the same wavelength, then the atom will absorb the photon at that wavelength.
When sunlight excites electrons how do the electrons change?
Depending on the energy (frequency) of the specific photon hitting the electron, one of three events happens: nothing, the electron is excited, or the electron leaves the atom. If the energy of the photon very high, the electron can absorb the energy and escape the nucleus' pull. This is called ionization. If the energy of the photon lines up with the energy spacing in the atoms energy levels, the electron will move to a higher energy state, becoming excited. The electron then returns to its original energy level, releasing the energy as light. If the energy of the photon does not fall into one of these categories, the electron does not interact with it. In terms of actually changing the electron, it only changes in energy, not any other property.
Why is the energy of a photon greater than that of an electron?
It does not. A photon has no rest mass an electron has mass and therefore more energy
Is 43 really the answer to everything?
No. The answer to it all is: 137, or, if you prefer, 1/137. or simply .0072992 which relates to whether an electron will absorb or emit a photon. This answer is probably as good an answer as you will get.
When an electron drops to a lower energy level what is the energy of a photon released?
The energy of the photon is the same as the energy lost by the electron
Is an electron and photon the same thing. It seems like my book interchanges them for one another. I'm confused?
No. The electron is not a photon. An electron is a charged particle of matter. A photon is a unit of "energy-time" designated by Planck's Constant h.
An atom can be excited if it?
thermal agitation, electron impact, and photon impact
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
When an electron in atom changes energy states a photon is emitted If the photon has a wavelength of 550 nm how did the energy of the electron change?
electron lost 3.6 x 10-19 -barbie=]
