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If the photon has a frequency of 4 x 1015 Hz how did the energy of the electron change?
Wiki User
∙ 14y ago
If the change in energy of electron is totally exhibited as a photon then the energy = h times frequency.
h = 6.626 x 10 to -34 J s
Simply multiply h and frequency you would get the energy in joule
Wiki User
∙ 9y ago
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What does the electron produce when they change energy levels?
a photon is emitted or absorbed
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).
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
What are the frequency and wavelength of the photon?
c = wavelength X frequency, where c is the speed of light, which is 299,792,458 m/s. So you need the wavelength of the photon. Then you divide c/wavelength and the result will be the frequency.
Is light emitted when an electron makes a transition to a lower energy level?
No, as energy is absorbed. When the reverse happens, the higher state to lower state, the electron is returning to its lower energy level ground state and energy is released in the form of a photon.
If the photon has a frequency of 4 x 10-15 Hz how did the energy of the electron change?
4x 1015 Hz The electron lost 2.6 x 10-18 J of energy.
What does the change of an atom from an excited state to the ground state always require?
An atom emits a photon (particle of light) when transitioning from a ground state to its excited state. To obey conservation of energy, the energy gained by the atom when an electron moves to a lower energy level is equal to the energy it loses in emitting the photon. (The energy of a photon is E = hf, where E is the energy, h is Planck's constant, and f is the frequency of the photon.) Conversely, when an atom absorbs a photon (as is the case in absorption spectra), the electron absorbing the photon moves to a higher energy level.
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.
The energy of a photon is related to its?
... frequency of the electromagnetic radiation of which the photon is a particle.
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=]
What is threshold frequency?
Threshold frequency (fo) is minimum frequency at which electrons are ejected from a metal.
What is the energy in a photon of light proportional to?
The amount of energy in a photon of light is proportional to the frequency of the corresponding light wave.... frequency of the electromagnetic radiation of which the photon is a particle.
What does the electron produce when they change energy levels?
a photon is emitted or absorbed
A change in wavelength produces what change on light?
Frequency, color, energy in each photon.
An electron gains 5.5 x 10-16 J of energy when a photon is absorbed What is the frequency of the photon that is absorbed?
8.3 x 1017 Hz
What is threshold frequency in photoelectric effect?
It's the frequency at which each photon has the amount of energy required to separate an electron from an atom in the target substance.
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
