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Well....the emission spectrum, kowing somethings that I believe to be what it sounds like, are either some type of "wave" that cannot be sound, therefore for us to see it, although with no sound, I guess it must be some other kind of wave, that vivrates at diffferent frequencys, now, the source of this is porbably something that produces light, like a prism maybe, ah, therefore I think that what causes this color to be seen is because when light hits theprism, and if I remmember, a prism emits light like a strraight rainbow coming out of it, or does it? I wonder, however, then there must be a change of frequencys chancing as light is inside the prism, that would explain why A, it doesnt spit out light but spits out a dispersed version of it unlike that dumb wolfmother album called dark side of the moon. Anyhow, the more the light reflects inside the prism, I have surmised that the less the frequency changes inside the prism, therefore that would explain the several layers of light, especially the violets. I got this all wrong didn't I....
nvm I got this all wrong....
i dont get this topic
the best explanation: http://www.youtube.com/watch?v=QI50GBUJ48s
ohkk...yea but why does h2 gas give light when heated??
h2 gas is given energy or photons when heated ,so electrons must absorb all the photons and get excited..light is are given off only when electrons relax to low energy levels and emit photons..
When you heat a substance, it excites the electrons. They go to higher energy levels and absorb light. When they come back to a lower energy state, they emit light. Light is emitted in the form of photons
yea ..so h2 gas is heated ..so why is it emitting light??
they must get excited....not relaxed
Well when you heat h2 gas, it DOES excite the electrons and bring them to a higher energy level, but they must also fall back to a lower one after. If they go up, they will come down
but h2 gas emits light immediately when its heated ryt??
Yes. The electrons absorb and emit right away
so electrons relax instantly??
Yes, in a sense they get excited and "relaxed" one after another
okk...so they emit photons or light of certain wavelength..how does this work??
whats ur doubt now?
they have explained it nicely
what causes h2 gas to produce the bright lines in spectra?? A. When photons of certain energies hit electrons, the electrons move to higher energy levels. B. After being excited to higher energy levels, electrons return to lower energy levels. In the process, they release photons of light of the energies seen in the spectra. C. When light hits the hydrogen gas, most wavelengths are absorbed by the gas. Only certain wavelengths of light pass through the gas, causing the spectral lines to appear. D. Most wavelengths of light are invisible to the naked eye. The bright lines represent the only visible wavelengths of light. The hydrogen gas has no effect on this light. (which option is right?)
i think its B
what do you think bobobobobb??
pretty much,wat i wanted to know is this.....
5.An atom of a fictional element has the energy level diagram shown below. Which line will not appear on the total emission spectrum? A. 0.9 eV B. 0.8 eV C. 0.7 eV D. 0.6 eV
AravindG ,can you help with this??
pls post that question separately and pls dont use OS to do ur homework
i dont have any bad intentions,its just for the future....
if its for ur future make an honest attempt in thse , read ur text again after that if u still have doubt call me @AravindG i will be there to help
yep then i will get notified
what are the lines on emissin spectrum exactly??
each line repesents what??
Each line represents an energy level a photon can be excited to. Being that most things in the universe wants to be at the lowest energy state, when the photon eventually falls to a lower energy state, it will release energy corresponding to a spectrum of light.
in case of h2 ,how many levels can it get excited too?? 4??because there is only 4 lines on its emission spectrum.......