Newsflash
 FujiFilm has presented a camera that can capture still images and 3D movies. Fujifilm FinePix Real 3D W1 uses "revolutionary" system consisting of two lenses, images of which form one 3D image. |
|
difference of bohr model and rutherford model orbit model (1 viewing) (1) Guests
Favoured: 0
|
|
|
TOPIC: difference of bohr model and rutherford model orbit model
|
|
|
|
difference of bohr model and rutherford model orbit model
|
|
|
every model of the planets orbits i have ever seen shows them all on the same plane... is this realistic, or just a simplificaton? if it matches reality, are the forces involved in any way the same as those acting on an electron in orbit around a nucleus? is the orbital model still current?
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
difference of bohr model and rutherford model orbit model
|
|
|
is the orbital model still current? You mean the planetary model (early QM) not the orbital model (later QM), right? If so, it still has its uses, which is why it is still taught to give students a handle on things like spectral lines. Chris Hillman
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
difference of bohr model and rutherford model orbit model
|
|
is the orbital model still current? This question is too vague to answer, I think. Cheers, Pete *You do not have permission to add my address to a mailing list* WWW : http://sa1.star.uclan.ac.uk/~prn Happy is he who has been able to learn the causes of things - Virgil
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
difference of bohr model and rutherford model orbit model
|
|
|
every model of the planets orbits i have ever seen shows them all on the same plane... is this realistic, or just a simplificaton? if it matches reality, are the forces involved in any way the same as those acting on an electron in orbit around a nucleus? is the orbital model still current? It's good within a few percent. A gravitationally collapsing spinning cloud goes diskoid to minimize energy. Angular momenum is conserved. The formulae for gravity and electrostatic interaction are both of the form (constant)(source1)(source2)/r^2. Electrons don't orbit the nucleus. They are quantum mechanical standing waves (unless it is more convenient to have them orbiting the nucleus).
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
difference of bohr model and rutherford model orbit model
|
|
|
every model of the planets orbits i have ever seen shows them all on the same plane... is this realistic, or just a simplificaton? if it matches reality, are the forces involved in any way the same as those acting on an electron in orbit around a nucleus? is the orbital model still current? All of the planets except Pluto are in nearly the same plane. Pluto isn't extremely far from this plane. The reason for this has to do with the way the planets formed from a spinning disk of material. The forces involved have the same sort of mathematical form but come from completely different sources. One is gravitational, the other electromagnetic. The behavior is very different because of the enormous differences in scale (typical values for mass, distance, and energy). So for planets it's an excellent approximation to treat them classically, while electrons orbiting nuclei have to be treated quantum mechanically. The behavior is so different that the use of the word orbit can be misleading. The electrons certainly don't orbit the nucleus in the same sense that planets orbit the sun. For example, if the atom is sitting in its ground state, nothing within the atom is moving. It's in what we call a stationary state, with clouds of electron probability centerred on the nucleus and just sitting there. As to your last question
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
difference of bohr model and rutherford model orbit model
|
|
|
The orbits of the planets in one plane seem to be a natural consequence of conservation of angular momentum in the collapse of the cloud of gas from which the solar system formed. The orbitals of electrons is a quite different kettle of fish (even though angular momentum is involved). I agree, but would add the following: The electrostatic and gravitational forces are both proportional to 1/R^2, but an atom with Z1 is very different from the solar system for two reasons: 1) Quantum mechanic is important in an atom; and 2) The forces between electrons, unlike those between planets, are not small perturbations. Item (2) does not apply for hydrogen (Z=1); and it turns out the old quantum theory, with the electron in a Keplerian orbit about the nucleus, worked pretty well for hydrogen. The nonrelativistic Bohr model gave approximately the correct spectra, and relativistic corrections gave the fine structure. Unfortunately, the old quantum theory was useless for computing the spectra of all elements other than hydrogen. Wave mechanics is indispensable for that purpose (opinions of cranks to the contrary notwithstanding).
|
|
|
|
|
|
|
The administrator has disabled public write access. |
|
|
|
Who's Online
We have 15 guests online
Rich people die differently than the rest of humanity
Wealthy people die differently than the rest of humanity - Scientists have discovered at the University of Michigan. The researchers Rent a car Poland AFCI World payroll Bulgaria found was that the rich people suffer before his death, much less pain than the poor and the wealthy elderly people complain about less annoying symptoms of old age. People of the richest groups in society, not only do not suffer from death due to pain, drukarnia phone card peru posizionamento Google but also less likely to cause breathing problems and depression. The only symptom occurring "democratically", in both rich and poor, it was fatigue, which complained about 57% of dying persons.
World's most expensive vacuum cleaner
Do you know what is previews.elegant-auto.co.uk lebensmittel polen polen the world's most expensive vacuum cleaner? This is a unique copy of the serial Ergorapido Electrolux vacuum cleaner, moreover, designed by Luke Mistletoe.The project is not new, It was shown for the first time was in previews.offroad-car.co.uk reviews.tourist-car.co.uk cheap hosting November 2008 Moreover, the idea came from the Electrolux, and ensure the implementation of the Polish company. But only now cleaner "decorated with" Swarovski crystals exactly 3730 was inducted into hosting Replica Uhren Holzhaus the Guinness Book of Records as the most expensive vacuum cleaner in the world and valued at nearly 14 thousand. pounds, or about 67 thousand. Gold.
|
|
