The Bohr Atom
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- čas přidán 5. 05. 2014
- 004 - The Bohr Atom
In this video Paul Andersen describes the major parts of an atom and explains how the Bohr Model more accurately represents the location of electrons around the nucleus. Niels Bohr refined the Rutherford model to account for spectra.
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All of the images are licensed under creative commons and public domain licensing:
"File:Emission Spectrum-H.svg." Wikipedia, the Free Encyclopedia. Accessed May 3, 2014. en.wikipedia.org/wiki/File:Emi....
"File:Emission Spectrum-H.svg." Wikipedia, the Free Encyclopedia. Accessed May 3, 2014. en.wikipedia.org/wiki/File:Emi....
"File:Fraunhofer Lines.svg." Wikipedia, the Free Encyclopedia. Accessed May 2, 2014. en.wikipedia.org/wiki/File:Fra....
information, This file is lacking author. English: Colorful Spectrum simulationEspañol: Espectro de Colores de La Luz visibleEsperanto: Koloroj Videblaj中文（简体）: 软件模拟的可见光谱。中文（繁體）: 軟件模擬的可見光譜。, August 27, 2008. Digitally created by Deborah S Krolls, December 13, 2004. commons.wikimedia.org/wiki/Fil....
---. English: Colorful Spectrum simulationEspañol: Espectro de Colores de La Luz visibleEsperanto: Koloroj Videblaj中文（简体）: 软件模拟的可见光谱。中文（繁體）: 軟件模擬的可見光譜。, August 27, 2008. Digitally created by Deborah S Krolls, December 13, 2004. commons.wikimedia.org/wiki/Fil....
me. Helium Is a Chemical Element with the Symbol He and Atomic Number 2., [object HTMLTableCellElement]. image:Helium.gif. commons.wikimedia.org/wiki/Fil....
---. Hydrogen Is a Chemical Element with the Atomic Number 1 and the Symbol H., [object HTMLTableCellElement]. Image:Fluorine.gif. commons.wikimedia.org/wiki/Fil....
OrangeDog, A_hidrogen_szinkepei jpg: User:Szdoriderivative work: Electron Shell Transitions of Hydrogen., 15:51 (UTC). A_hidrogen_szinkepei.jpg. commons.wikimedia.org/wiki/Fil....
Unknown. Ernest Rutherford, ca (original photograph 1910. This file is lacking source information. Please edit this file's description and provide a source. commons.wikimedia.org/wiki/Fil....
Currently upgrading to get into school. Ive used these videos for both Bio and now Chem. Im so thankful that my teachers use these videos as teaching tools. They are so wonderful and clearly explain concepts, thanks for making them!!
Everytime he says "I hope that was helpful" I'm like yasssss man totally!!!
The more I learn about Chemistry successfully, the happier I become. Thanks!!
+Brian Merritt This is physics bro. But still, I am using it for Chemistry.
Ayush Mishra Is it not quite possible, bro, that this topic is where physics and chemistry meet? They are, after all. very interrelated areas. They are both basically the study of change and movement. I would even make the argument that this topic includes quite a bit of advanced math when you get deep into it. So this is science, bro.
yup, chemistry also has connections with thermodynamics. (Ideal Gas Law)
Ayush Mishra Right. So pipe down.
"pipe down". Chill he was just talking with you.
My professor just gives us equations without explaining the content. Your video helped me out so much to understand the core information about bohr's model. thank you so much for taking your time to make this video.
watching this cuz i had an assignment for chemistry due at 11:59
aren't we all lmaoo
@@ihatepeople9847 lmao yup
in 10 mins for me
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Sir, I wanna thank you for saving my SAT physics grade. Seriously. Your videos are perfect.
Excellent video. These videos are very well done and actually make Chemistry more and more lovable. I am not a Chemistry student but always wanted to learn Chemistry on my own. These videos make the journey very enjoyable indeed. Thank you for taking the time and effort to put out such amazing and educational content.
Always love watching your videos, search for your name when I need help. You helped me in bio, physics and chemistry
Thank you so muc, i absolutely love your videos. The explanations are so clear and i really appreciate all of the images while you explain because i am a very visual person. Thank you so much i cannot explain how much this was helpful!
Thanks Mr. Aderson for helping us understand science... really you and others like you all are great people...
I never liked science before but watching your videos makes me understand everything. Thank you
Thank you so much. Very clear explanation and perfect timing for the AP Physics test.
U are the best i swear
I have a presentation for my class tomorrow about neils bohr’s atom model and this really helped me
Thank u man❤️
same
I kept struggling about this concept. You helped a lot!!
i'm sick.... THANK YOU!!! I've been reading this same sub-chapter for the last few days, and finally surrendered and looked up the information!!. THANK YOU!
My G made this video 8 years ago and Im using it today for my university project. Respect!!
The best video on this topic! Thank you
Hi Mr.Anderson I like your videos ...and simply want to thank you :D
This is so well put together!
Thank you so much. Your videos are awesome as usual.
Awesome videos! Learned more from these vids than from my high school teacher.
this guy is amazing, you really do a great job!
Thanks for another lovely video! Love seeing these videos pop up on my youtube home page:)
Thank you for the videos. I use them to supplement my class material. I have used them in every class, chemistry, biology, environmental, earth science. Your explanations are clear and to the point. They are great refreshers for students in class and for those that are absent, working online.
Nicely and smoothly explained, thanks
This was exactly what I needed thanks a ton
Great video as always, but you may want to add an annotation at 40s - I believe an accelerating electric charge gives off EM waves, not merely a moving one.
Thanks for that catch. I have added an annotation.
Your videos are great summaries of the main points. I recommend them to my students for review and sometimes use them in class when I think my students need a break from listening to me. Thanks for all your hard work.
Bozeman Science Dude, you're so freaking awesome! One of the best on CZcams. I'm 14 and I still enjoy your videos!
+Jacob Roark Technically an object moving in a circular orbit is always accelerating since it's velocity is constantly changing direction
I don't see your point. That's the whole reason Bohr realized that electrons were different and didn't actually move in circular orbits.
Thanks for this video. I needed to know more about Bhor for my physics report. Don't mind while I use your video as a source hehe :)
Thanks a lot!
it is a very helpful video ...good work
Really learned a lot from this video!!
I love mr.andersons class so much!💭
Thanks, you made this easy to understand
Thank you for helping me with my physics assignment! :D
This is freaking awesome. Im polishing up on chemistry to try and get as far as i can to re-do a failed exam and this.. is amazing.
This video is excellent. Thank you for it.
+Jata Johnson Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
Thank you that was really helpful.
thanks man this was great
If the electron is revolving wouldnt it still be an accelarated nd charged particle?
I love your vids! Great effort. Greetings from Malaysia.
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yes, this was very helpful, thank you so much!:)
The video is very very useful thanks ❤✨
that was so useful thanks❤️
Explained very well!
Helpful as usual
تحححفه بجد good job 💗💗💗
How do we get the balmer series in the emmision spectrum of hydrogen if it only has one electron? Isn’t it’s ground state n=1? The first energy level. Help I’m confused
The man that got me through AP Bio is back to get me through AP Physics C. HUZZAH!
hey how does an electron go from one energy level to another without passing through the space between the energy levels? does it teleport? how is this possible?
Excellent explanation.
YES!! This was extremely helpful! I understand it, but I always struggle with how to teach it to my students.
you WHAT
That's sad. I pray for your students
Very helpful, thanks
can it absorb energy from a wifi source if an atom has the same frequency?
THANKS AGAIN KEEP HELPING US
Is it possible for an electron to absorb another photon while it is orbiting the highest level? It so, what would happen? Would the electron start floating away?
Brilliantly explained
so it says that electrons move to higher energy levels when they get energy from photons, and move back down when they emit photons back out. So does this mean electrons are constantly emitting photons?
If they are, and a photon doesnt hit it at the energy level closest to the nucleus, wouldn't if fall to the nucleus
***** The assumption made in the Bohr model is that the electron in the lowest energy level does not give up its energy.
super helpful, thank you!
Very helpful. Thank you
Great video, very helpful thanks a lot.
+andrew gonz Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
Great Work. 👍🏻
these is very helpfull thx man
Very helpful! Thanks
the electron in hydrogen atom doesn't occupy the second, third or fourth energy level. how does it move to a higher energy level then returns to the 2nd, 3rd, 4th energy level?
That was definitely helpful!
I know you probably won't see this, but regardless I thought I would let you know that this video is so awesome that ADLC (alberta distance learning centre) put the link in it's phycis 30 (last year of high school physics) course material.
Great videos provided by you
+Dev Karan Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
love your vids
+E k i Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
Thank you sir! Your videos always help me.
+Blas Hernandez Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
+Blas Hernandez Transitions of electrons from a higher energy state ( the energy states are the values of the "n") to a lower energy state emits an photon. You can calculate the wavelength of that photon by using the following equation 1/lamda=Rh((1/n1^2)-(1/n2^2)). The Lyman series are transitions of electrons in the following range n1=1, n2=2,3,4,5,7. The Paschen series are transitions of electrons in the following range n1=3, n2=4,5,6,7..etc.
So n is basically which energy shell the electron is on? Can you elaborate more on the Paschen and lyman series, I don't quite understand
+Peter Sadok .... Yes sir. You can think of the "n" as being the energy shell or the energy level where the electron is located. Ok. So in order to emit a photon, an electron has to relax from a high energy level to a lower energy level. So for the Lyman series, the electron needs to relax from a higher energy level, either being n2=2,3,4,,5,6,7, to the low energy level n1=1. If the electron does not relax to the n1=1, it is not considered the lyman series. So, when the electron relaxes to the n1=1, it will emit a photon, and we can calculate the wavelength of the photon. for the Paschen series, the electron needs to relax from a higher energy level, either being n2=4,,5,6,7, to the low energy level n1=3. If the electron does not relax to the n1=3, it is not considered the Paschen series. So, when the electron relaxes to the n1=3, it will emit a photon, and we can calculate the wavelength of the photon,.
Blas Hernandez So lyman series and paschen series are essentially the name given for how much electron relaxes to whatever level? Sorry if I'm too stupid to understand, I was never good with science
Can anyone please explain what exactly are the Lyman, Balmer, Paschen, Brackett, and Pfund Spectral series? What does it mean at n=1,2, or 3?
+Peter Sadok Lyman series arise from electron transitions from higher energy states to the first energy level n=1.
Balmer series is from higher energy states to the second energy level n=. So if an hydrogen electron gains energy, say it was in energy level, n=1, when the electron gains energy it jumps to a higher level n=5, when the electron can no longer maintain it's position in the higher energy level it will fall back to n=1 an emit a photon of light, which would fall in the UV part of the spectrum.
ur videos r gr8...but I found this one moving too fast...like I didn't get anything bout d spectra or d last part bout the sun's rays...
but how does it travel between those levels does it teleport otherwise it HAS to be between theese levels while traviling
Its quantum mechanics stuff I believe, a probability field, quantum mechanics don't have to do anything they don't want to. Entanglement comes to mind.
Dave Perkins is that that 'invisible wire' thing?
yeah I think along those lines, I'm not the best guy to elaborate though
Electrons can’t move between energy levels, but can smaller particles (like neutrinos or gluons) traverse that space?
it would be possible, subtitled in Portuguese / Brazil? I love your videos.
nice video! but i dont understand the bohr atom, could you make a seperate video about the bohr atom? greetings from PHYSIKUNTERRICHT
6:07 it was very helpful...👌👌👌
Tq sir helped me so much!😁👍
Do you think not understanding comes from the idea of knowing all the moving parts or knowledge, but not being able to fit them together?
Could the flip of magnetic poles have anything to do with energy levels?
awesome video
Thank you sooo much!!!
I love this!
Good job
what experiment did bohr do to reach that conclusion?
Wunderschön!
thnx for the great work as always...!! BTW..why is it that Bohr model applies only to hydrogen and not others....
you are the best
It's him. The anomaly. Do we proceed? Yes. He is still only human.
well explained
Please make a video on DNP it is a very interesting and controversial topic. More in-depth how it effects the mitochondria, oxidative phosphorylation and ETC.
Yes please, this would be just way too perfect! :D
Thank YOU
firstly u say that it doesn't radiate energy then how would u get spectrum if u are getting spectrum the energy of electron will decrease and take a spiral path
Doubt??? Electron of hydrogen occurs in 1st orbit or second.if orbit other than 1st so how is this possible
It was helpful only a little bit if you could make us a little experiment about how the material of the sun was discovered that would be great
if the electrons in the last energy level gains quantum where will these electrons go ?
There are infinite amount of shells, so if the electron took more energy, it would get more potential energy and go to a higher shell
bohrs description of atom is wrong , first the electrons takes cymatic forms (3d faraday waves) , second when stimulated the whole electron glows and light waves exit 360 in every direction like a light globe if you put those waves through slit you get wave particle duality effect
But hydrogen has only one orbital right? Cos it’s got only 1 electron... then how are those series for hydrogen possible?
There is only one type of electrons where all free electrons that emitted from an electron-gun of a cathode tube will be deflected to a single spot on a screen behind the cathode tube. If there are two types of electrons then there should have two spots on the screen behind the cathode tube. Nucleons are tiny magnets where a cluster of nucleons in the formation of a nucleus will form a mosaic of elastic magnetic field and electric field where those stationary electrons can surf on it. Therefore in our research, we discovered that every atom has only one electron-shell, and not multiple electron-shells as suggested by Neils Bohr. We have been neglecting the importance of nucleus for a long, long time as if it is not important at all. The nucleus with the influence of its protons and neutrons will mold the size and shape of its electron-shell. The nucleus structure also molds its orbitals. Bohr's atomic model can't explain why and how an atom changes its chemical and physical characteristics before and after chemical reaction. During chemical reaction, either heat will be absorbed or dissipated. This causes the nucleons of an atom to change their stockpile of stationary photons in which this causes the nucleus structure to flex slightly different before and after chemical reaction. The different flexure of the nucleus structure will remold the size and shape of its electron--shell as well as re-orientate its orbitals. Therefore an atom will have different chemical and physical characteristics before and after chemical reaction. The spectrum of an atom is derived from its nucleus structure also. It is widely being misunderstood that the spectrum of an atom is molded by its valence electrons. If you are interested in real discoveries, I would recommend you to read my book, The Unification Theory - Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.
Jumping and falling is not possible for the electrons, they can’t exist inbetween two energy states.
I realized last year that the particle model of the electrons could cause problems explaining this to students.
I therefore use the probability ‘where’ to find the electrons now and the overlap of the 1s, 2s and 3s orbitals for a hydrogen atom in my explanation.
why is it just in hydrogen, no further studies for other elements?
Not just Hydrogen, but any atom with one electron.
so, do you have radiation coming from random accelerations of electrons or not?
one could assume that electron has to have all locations between states, unless tunneling is warping
i'll make a wild guess, that there is no hard barrier but a changing barrier giving rise to tunneling
whats the difference between insulator, semiconductor and conductor? no moving electrons in insulated state, i would assume they are next to core when stationary, ground state