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Phy_enthusiast
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What is the proof for quantisation of electrons energy around an atom?
Phy_enthusiast said:Bohr applied the 'plancks black body radiation quantisation' theory to that of atomic world of electrons, and proposed his theory of atom, but does this application of radiation quantisation directly to electrons energy have any proof?
...there is, strictly speaking, no such thing as proof in science (see "the problem of induction" and "empiricsism") ... the observed discrete atomic spectral lines supports the idea that electron energies in an atom are quantized. But it does not prove it.Phy_enthusiast said:Bohr applied the 'plancks black body radiation quantisation' theory to that of atomic world of electrons, and proposed his theory of atom, but does this application of radiation quantisation directly to electrons energy have any proof?
Both these guys were working from prior data, and both sought further data to help refine their theories. This is how science is done.Phy_enthusiast said:Plancks law seems to be a emperical while that of bohr seems to be theory verified later.
Simon Bridge said:...there is, strictly speaking, no such thing as proof in science (see "the problem of induction" and "empiricsism") ... the observed discrete atomic spectral lines supports the idea that electron energies in an atom are quantized. But it does not prove it.
I suggested you look up "Balmer Series", did you do that?
Both these guys were working from prior data, and both sought further data to help refine their theories. This is how science is done.
There are many experiments which support the idea that electron energies in an atom are quantized.
I was hoping that you would have made some effort to discover them yourself.
Scientific models do not rest on just one experiment though - they are supported by the cleverness of the many attempts to disprove them. To go from "this phenomena looks like it works by this rule" to "this phenomena is this way" takes a while and requires quite a bit of evidence.
Among the many experiments concerning energy quantization in atoms, the following are easily discovered in casual googling.
Frank-Hertz experiment (historically important - an early clue)
There's the discrete atomic emission and absorption spectra already mentioned.
You know a theory is pretty solid when there is a commercial product which relies on it:
Lasers rely on quantized energy levels for their operation too, so do LEDs - and a range of common semiconductor devices in common use.
You should read about all these things.
Conversely - can you think of any experiment that demonstrates atomic electron energies are not quantized?
After seeing a number of seminal experiments and real world devices you conclude that... theoretical physics is amazing?Phy_enthusiast said:Theoretical physics is amazing in the sense application of human intellectual mathematically can do wonders. [...]
cgk said:After seeing a number of seminal experiments and real world devices you conclude that... theoretical physics is amazing?
Phy_enthusiast said:Theoretical physics is amazing in the sense application of human intellectual mathematically can do wonders.Its same in the case of bohr,because at that time the electromagnetic theory needed explanation for atomic dynamics by proposing his theory he gave birth to atomic quantum world.
Phy_enthusiast said:Many physics inventions are outcome of theories proposed, experimentation is different physical science and theoretical is different.
Quantization of electron energy refers to the concept that electrons in an atom can only exist in discrete energy levels, rather than being able to occupy any energy level within the atom. This was first proposed by Niels Bohr in his atomic model in 1913.
The quantization of electron energy has been proven through various experiments, such as the photoelectric effect and the emission spectrum of elements. These experiments have shown that electrons can only absorb or emit energy in specific amounts, corresponding to the discrete energy levels within the atom.
Understanding the quantization of electron energy is crucial for explaining the stability of atoms and the behavior of electrons within them. It also helps to explain the unique emission spectra of different elements and is essential for the development of modern technology, such as transistors and lasers.
While we cannot directly observe the quantization of electron energy in our daily lives, its effects can be seen in many technological devices that rely on the behavior of electrons, such as computers and smartphones. The principles of quantization also play a role in the functioning of solar panels and fluorescent lights.
There are a few exceptions to the quantization of electron energy, such as in the case of atoms with extremely high energies, where the energy levels become so close together that they appear continuous. Additionally, the Heisenberg uncertainty principle states that it is impossible to know both the exact energy and position of an electron simultaneously, making it challenging to precisely measure the quantized energy levels of an atom.