Energy level Definition and 135 Threads

Why in atom, ther r discrete energy level & not continous? and energy emitted, from atom is in quata only?please give me exat answer or a related websites. thanx in advance:redface:

Hallo. my teacher wrote for the first energy level of a particle in a certain potential \Delta X \Delta P \approx \frac{\hbar}{2} exist. is it a general result for all energy level or there is specific meaning for the first energy level?

The probability that an electron is in an excited state is given: P = e^-(energy difference)/kt and the probability that an energy level is occupied in semi conductors is: p = 1/ (e^(E-Ef)kt + 1) I know both are related to fermi-dirac statistics, which one is the...

Homework Statement In 1989, a new type of exotic atom called protonium was produced. Its structure is hydrogen-like, with the electron replaced by an antiproton. As the antiparticle of the proton, an antiproton has the same mass but opposite charge. In this problem, you should consider...

Let me know where my logic is off...Much thanks! so a) For T1: Transition -54.4-(-13.6) = 40.8 eV For T2: -13.6 - (-6.04) = 7.56 eV T3=? n4 = n3 so -6.04 + 7.56 = 1.52 eV T3 = 1.52 eV n4 = 1.52 eV b) E = pc c = 6.63 x 10^-34 JS p = E/c p = 1.52/ 6.63 x 10^-34 JS p=2.29 x 10^33 c) KEmax =...

1. Problem: The ground-state energy of a hypothetical atom is at -10.0eV. When these atoms, in the ground state, are illuminated with light, only the wavelengths of 207 nanometers and 146 nanometers are absorbed by the light atoms (1 nanometer = 10^-9meters). (a)Calculate the energies of...

For drawing a energy level diagram of He+ (singly ionized He), do I draw it without the interaction of the "outside" electron, thus no effect of orbital angular quantum number l (because there's only 1 electron left). Or should I draw it with the interaction with the "outside" electron, leading...

What is "virtual energy level"? What is "virtual energy level"?

Is it true that the discrete energy level of schrodinger's equation is due to boundary condition? What is the definition of boundary condition?

I'm looking for a simple physical explanation of the lowest energy level in atoms, so I can provide a brief explanation to interested laypeople (not to mention just to help myself understand better). Does anybody want to take a crack at it? Or am I asking for the impossible? Since electron...

I'm looking for a simple physical explanation of the discrete energy level in atoms, so I can provide a brief explanation to interested laypeople (not to mention just to help myself understand better). Does anybody want to take a crack at it? Or am I asking for the impossible?

I'm currently reading a book which says that by knowing by the Bohr radius, in this example that of hydrogren, the energy of each orbit level can be calculated by deriving the appropriate Rydberg formula constant using Coulomb's law and Newtonian mechanics. Following their description I tried...

Homework Statement When a excited atom hydrogen ( wavelength ) de-energized emits energy and the electron returns to the fundamental situation. If the wavelength of the radiation emitted is 121 nm, to find what was the energy level of the individual electron of hydrogen atom ( Η ) in the...

how do you draw the energy level diagrams for LiF molecule? i know how to draw an energy level digram for Li but how do you do it for a molecule?

Hi everyone I am new to quantum physics, [well any physics before this year] I am doing a course where I am asked to explain the sub atomic particles and why my chemical is like it like hydrogen. I have Carbon ^5+ ion, This makes it like hydrogen because there is one bound electron, I take...

Homework Statement Calculate the energy and radius for each of the five lowest (n = 1,2,3,4,5) electron orbits in a Helium atom with only one electron. Enter the energy as a positive value in units of "eV" and the radius in units of "nm". Hint: The Helium nucleus has 2 protons so Z = 2 and...

I understand that electrons are excited to higher energy levels. When they fall back levels, photons are emitted. If green light has wavelength 5.58 \times 10^{-7}m and red light has wavelength of 6.48 \times 10^{-7}m, why is it that when a photon is emitted from green light, it falls a...

fermi level?? is there any relation ( equation) that give the fermi energy level in terms of Na and Nd the concentration of dopant??

when some energy is suplied to an electron in a higher energy level E2 then how come it drops down to a lower energy level E1 but as per our knowlwdge of physics...it should jump to a higher energy level E3.

Homework Statement A monatomic gas is illuminated with visible light of wavelength 400nm. The gas is observed to absorb some of the light and subsequently emit visible light of both 400nm and 600nm. The initial state is -5.0 eV and the ionized atom (continuous energy levels) is 0 eV. a) Draw...

Hi all, When we add 'B' impurities to 'Si', we get some discrete energy levels above the valence band (Energy level of holes!). I believe that the electrons from Si and B which are participating in the bond formation have different energy levels {Different orbits}. :confused: Correct me if...

Consider a helium atom where both electrons are replaced by identical charged particles of spin-1. Ignoring the motion of the nucleus, the Hamiltonian is [see attachment 1] Construct an energy level diagram ( qualitatively ) for this "atom", when both particles are in the n=1 state, and...

Homework Statement The hydrogen spectrum contains a blue line with a wavelength of 434 nm. Photons of blue light are emitted when hydrogen's electron drops from the fifth engery level to a lower energy level. What is the lower energy level? Given Wavelength = 434 nm n1 = 5 n2 = ? R =...

Do electrons on higher energy levels have increased speed? This is confusing because if we look at it considering a centripetal force inversly proportional to the radius squared, the speed decreases. However since it's on a higher energy level, dosen't that mean the speed actually increases?

I don't really know what it is... if someone could give me a link that explains what it is in details (but still in the realm of algebra), thank you.

Are there any tutorials available that explain how to create an energy level diagram for related reactions? I've done a search on google but came up with nothing. Thanks.

A hydrogen atom, initially at rest in the n = 4 quantum state, undergoes a transition to the ground state, emitting a photon in the process. What is the speed (in terms of m/s) of the recoiling hydrogen atom? anyone knows what to do? i calculated the energy difference and got 12.75 eV and i...

A sample of hydrogen gas absorbed sufficient energy to make the electrons jump to the 3rd excited energy level. It is said that 6 lines can be observed in the complete emmission spectrum as the atoms relax back to ground state. But why six though? When I check a diagrm of the spectrum, it...

Hi, can anybody help me with this problem? I am currently study quantum mechanics and am confused with the BE staticstics. OK, say there are N Bosons in a system with two energy levels. The lower energy level is 0 and the upper level is E. The question is what is the average occupancy of the...

Hi, I am currently doing the write up for a project (Mercury spectroscopy), and would like to put some energy level diagrams in, with the transitions being shown. Does anyone know any software (preferably free/open source) that could do this, or help? Or if there is a way to do it in latex...

Does anyone know where I can find Partial Energy Level Diagram for Hydrogen? Thanxs.

I am having trouble with this problem, According to Bohr's quantization rules, the angular momentum of the electron in a given orbit is quantized according to P=nh. Find an equation for the possible kinetic energy levels for the electron orbiting in circles in a magnetic field, B. Calculate...

which one is more important in determining the size of an atom? for example - Berilium has a smaller radius than Lithium because it has a greater core charge, but what about Nitrogen vs Berilium? Nitrogen has a greater core charge, but it has electrons in the 2p subshell whereas Berilium only...

i searched the web for the energy level of electrons and i found out two figures. in one it said the the higher energy level electrons are further away from the nuclie and in the other one it said the higher energy level electrons are closer to nucli. i wanted to know which one is the right...

when a photon aquiers more energy is the transfer instant or is there a time lag before the photon exhibits its new energy level? sorry if this is old question but i cant find aswer.