Atomic model Definition and 28 Threads

Hello, I am struggerling with this very basic physics problem. I understand that an electron can get excited if the energy of an incident photon is enough to jump to a higher band. If I understand correctly, this will only use up exactely the required energy. What I do not understand is what...

I am a Computer Science Engineering student at a local university in India and I was really moved by the CERN youtube channel and it got me curious about the particles like electrons and protons, I love symmetry in nature and was not a huge fan of proton being nearly 2000 times the mass of...

With regard to Rutherford's atomic model, and Rydberg's discovery in general for the hydrogen distribution lines, what does Rydberg's constant physically mean? Its unit is m ^ -1, as if it were a rate, but it was not clear to me its physical meaning. And why does it grow with atomic mass...

Hey guys! Not a brain scratcher as such, just a clarification. When we talk about Bohr's postulates for his atomic model, would the Bohr-Bury scheme be involved in it? like in his postulates?

For work I am a technical support engineer, who solves all sorts of customer problems. I do physics for fun, not for living. From J.J Thomson 1904, to Rutherford 1911, Bohr 1913 and Mulliken 1932 the atomic model underwent four major changes (including its creation) The more I read and learn...

I am trying to learn quantum physics on my own and while doing this I came across bohr's atomic model. What parts should I focus on the bohr's atomic model so advancing to schrodinger's equation will be easy?

Let's say there are three states ofor energym, E1, E2 and E3, and the electron is at E1, what happens if a photon has energy E > E2-E1 ? Does it interact to the electron anD take it to E2 and the photon loose energy E2-E1 or it doesn't interact at ALL? I mean, the electron can't have an energy...

I think there are only two metals, Copper and Gold , that exhibits some color other than silver or gray. I went to a science exhibition where samples of almost all metals where kept, I think I could only see Copper and Gold having different colors. Why is it so ? why not other metals show colors ?

Hello, well, I am totally new to this section of physics so my question may sound ridiculous, but here it is: When I was reading about the Bohr's atomic model, I learned about the Bohr and Rydberg equations (E=-2,18*10^18*Z^2/n^2 J and 1/λ=RZ^2(1/n1^2-1/n2^2) as well as their proofs. Then I...

So in a lecture I'm reading up on we are given questions to answer during the lectures with no answers, and for this particular lecture the answer has been omitted and it is in none of our textbooks. But basically it says that a proton and a sigma plus, both have the same quark composition...

hi, ive got a really simple question. niels bohr proposed a model of the atom in witch the electron cannot fall into any energy state but must fall be in certain discreet values and this helps explain why the electron doesn't clumb with the nucleus almost instantly. not the atom needed to...

Have atomic models been proposed that do not have overlapping N levels?

Homework Statement I am basically wondering how they got to the assumption that the Ve = 2Vα. I've tried it a few times and I keep on getting that based off of their other assumptions, Ve should =0, even though I know that this cannot possibly be the case. Homework Equations Conservation of...

In Rutherford's atomic model, electrons are in circular orbit around nucleus. My teacher said, "It has limitation. According to classical electromagnetic theory, the electrons are acceration and they will emit radiation and lose energy. And finally spiral into nucleus. Th atom will collapse if...

Homework Statement Suppose an electron was bound to a proton, as in the hydrogen atom, but by the gravitational force rather than by the electric force. What would be the radius of the first Bohr orbit? Homework Equations r = h^2 / 4∏^2*mke^2 The Attempt at a Solution I'm not...

I studied it in a book that Rutherfords Atomic Model was Unsatisfactory bcz the revolving electrons in his model would lose energy.How would they lose energy as far as I know they are kept in rotation by the centripetal force and work done by centripetal force is 0.NO work done no energy...

What is meant by nuclear atomic model?

Rutherford postulated that the electrons are moving around the nucleus of the atom in circular trajectories, right? My professor said that or I believe in it or there is no more chemistry to study, because this does not agree with some law of Maxwell's theory of electromagnetism. He said...

Calculate the speed and radial acceleration for an electron in the hydrogen atom. Do the same for the Li++ ion. v = e (4pie0mr)^(-1/2) ar = (v^2)/r r ~ 10^-10 m v = 2.24 x 10^6 The book makes note that we can allow a nonrelativistic treatment since the velocity ~ .007c. And for the lithium...

Hi, I always heard the textbook presenting the idea that atom is mostly compose of space by giving the analogy that if the whole atom is the size of a stadium then the nucleus would be the size of an eraser in the middle of a stadium, and the electrons flying around the stadium but if this...

any can answer this? that why J.J Thomson strike gold by alpha particles in his experiment by which he propose model for atomic structure?

Why the rutherford atomic model can't explain the line spectra of the hydrogen atom?

[b]1[ Now in the 2nd year of b.tech I, since was in class 9th not understanding how Bohr modified the earlier Rutherford atomic model.It is known to me that Rutherford atomic model was failed because it could not satisfy the electromegnetic principle,according to which an elecltron continue to...

May someone please explain what were some problems with the Bohr model of the atom. I found a few things on Wikipedia, but I being a beginner in the Physics curriculum do not fully understand how it all ties together. If there is a link to this topic in the forums, please do tell. Thanks.

I understand Rutherford proposed that electrons orbit around a central nucleus. However, since accelerating charges produce electromagnetic radiation, the orbiting electron should lose energy via E&M and spiral into the nucleus. But my question is: How do I calculate the time it takes for the...

Hello, I have a few questions concerning what the atomic model currently "looks like" since the quantum revolution. I know that, since the wavefunction, electrons are in probability "clouds" and I know they are standing waves. So this would mean, technically speaking, that the electron...

My physics teacher told me that one of the innacuracies of Bohr's Atomic Model is that the nucleus (positive) would attract the electron (negative) making it move as a spiral until it collapses with the nucleus. What I don't get is why the same thing doesn't happen with a planetary system. How...

I need help with these 3 questions: 1. Describe the Bohr model of the atom. How does it differ from a planetary model based on classical physics? ======================== 2. In terms of the Bohr theory why is that electrons don't spiral into the nucleus? ======================== 3. If...