Emission and Absorption Spectra

  • Ajoutée 6 mars 2015
  • 086 - Emission and Absorption Spectra
    In this video Paul Andersen explains how the photons emitted from or absorbed by an atom or nuclei is directly related to electrons moving between energy level. Absorption and emission are a direct result of the conservation of energy. Scientists may use the emission spectra of material to determine the atoms or molecules contained within the material.
    Do you speak another language? Help me translate my videos:
    Music Attribution
    Title: String Theory
    Artist: Herman Jolly
    All of the images are licensed under creative commons and public domain licensing:
    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/File:Spectrum4websiteEval.png.
    “Gas-Filled Tube.” Wikipedia, the Free Encyclopedia, January 31, 2015. en.wikipedia.org/w/index.php?title=Gas-filled_tube&oldid=634245710.
    Kuiper, Pieter. English: Fridge Letters in Natural Light, November 9, 2009. Own work. commons.wikimedia.org/wiki/File:Fluorescence_off.jpg.
    ---. English: Plastic Fridge Letters (from Different Manufacturers) When a Fluorescent Lamp (Labino) Is Switched on, November 9, 2009. Own work. commons.wikimedia.org/wiki/File:Fluorescence_on.jpg.
    Kurzon. English: A Simple Illustration of Bohr’s Model of the Atom, with an Electron Making Quantum Leaps., April 14, 2014. Own work. commons.wikimedia.org/wiki/File:Bohr_atom_animation.gif.

Commentaires • 267

  • Mustakim AA
    Mustakim AA Il y a 19 heures

    Thank you!

  • Hugo Hébert
    Hugo Hébert Il y a 2 jours

    Very good

  • Anahita Saxena
    Anahita Saxena Il y a 9 jours

    This is so well explained, especially the simulation

  • Noof720
    Noof720 Il y a 9 jours

    Your explanation is great thank you

  • ana luiza b.
    ana luiza b. Il y a 13 jours

    Super helpful!

  • rapturous day
    rapturous day Il y a 18 jours +1

    So what your saying is....
    Photons are intergalactic atomic cryptocurrency.

  • Padawan Atodon
    Padawan Atodon Il y a 21 jour +5

    I’m curious as to exactly how the electron absorbs and emits electromagnetism. At the moment of interaction, what’s happening? How can it be visualized by our minds? Does the electromagnetic energy get converted into the electron and then back again into electromagnetism when it emits?

  • atomicmonkey
    atomicmonkey Il y a 24 jours

    vasanth bro learn

  • mariam nahrawi
    mariam nahrawi Il y a 26 jours

    Thank you!!

  • Lu Z
    Lu Z Il y a mois

    So is it different from biology where for example, a leaf, reflect the colors it DOESNT absorb

  • Harsha Patil
    Harsha Patil Il y a mois

    This time u are quite fast..

  • Ahmad Jarrad
    Ahmad Jarrad Il y a mois +11

    Sitting here a little confused, while looking at positive comments isn't helping me out.

  • user2002
    user2002 Il y a mois

    Thanks! This is great.

  • Alpha Stronghold
    Alpha Stronghold Il y a mois +1

    Can you give out the PHET simulation link pls?

  • Yajur Chandar
    Yajur Chandar Il y a mois

    You spelled emission wrong.

  • Nyameko Nduli
    Nyameko Nduli Il y a 3 mois

    When you shine visible light through the prism, where did the INFRARED AND UV come from?

  • Vic
    Vic Il y a 3 mois

    the power of this man

  • Amarpreet Kaur
    Amarpreet Kaur Il y a 3 mois

    Thanks you really made it simple it was good thanks once again

  • Mohini Reddy
    Mohini Reddy Il y a 3 mois

    That was truly useful.... thanks

  • kok fah chong
    kok fah chong Il y a 4 mois

    Spectral lines of an element are caused by it unique nucleus structure and not by electrons jump from higher orbit to lower orbit. When the atoms are subjected to electric field or magnetic field, the spectral lines would split into finer spectral lines due to the new flexure of unique nucleus structure. The unique nucleus structure is the fingerprint of an element and its compounds. The fact that there is only one type of electrons where all free electrons that emitted out from an electron-gun of a cathode tube will be deflected to a single point behind a screen of the cathode tube after interacting with a fixed external magnetic field. If th4ere are two types of electrons, one spin u[p and the other spin down, then there will be two spots behind the screen. Neils Bohr's atomic model is wrong. Exchanging of photons is not conserved since photons have mass. The spectral lines are perennial therefore it is naïve in believing that energetic electrons jump from higher orbit to lower orbit.Why should they jump from orbit to orbit? Why and how they do so have not being explained! 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.

  • Robert W
    Robert W Il y a 4 mois

    Only high energy light like UV and XRay make an electron jump to the next shell - ionizing energy. Lower energy light like IR is absorbed by the nucleus of the molecule at energy levels corresponding to frequencies at which the nucleus vibrates.

  • tuilika andreas
    tuilika andreas Il y a 4 mois

    Very helpful thank you!

    EESAA RASHID Il y a 5 mois +1

    Thank you so much well explained and diagrams really helped me visualise what you were explaining.

  • megan mcwethy
    megan mcwethy Il y a 5 mois +1

    Wow, you are great at explaining things, thanks for the video!

  • Gaeg plays
    Gaeg plays Il y a 5 mois +3

    This video should be watched at 0.75 speed

  • eggsandwine
    eggsandwine Il y a 5 mois

    Do electrons jump down on energy levels by themselves? Do they emit photons that have been absorbed by themselves? I mean, obviously, we have to provide/hit them with energy in order to jump up, but how come they jump down? Is it supposed to be their default ground state, so they return to it?

    • jhivan benoit
      jhivan benoit Il y a 5 mois +1

      Yeah, the electrons want to release the energy so when their energy state is elevated they will try to give of a photon

  • Bahez H.
    Bahez H. Il y a 5 mois

    He talked about atom emissions and absorbs diffrent colors of photons, but in the simulation the atoms absorve electrons not photons, how can an atom absorb an electron?

    • SuprH88
      SuprH88 Il y a 5 mois +1

      Electrons can be seen as particles so when they collide with the atoms, some energy is transferred to the atom.

  • nana mch
    nana mch Il y a 5 mois +1

    Sir, thank you for ALWAYS being there when i need you. like seriously, since i'm a freshman who needed some understanding about the lecture.. until now, a senior who is doing research for the final project. you were and are always there for me. clear and brief. you'll always be my youtube father :D

  • B1SQ1T
    B1SQ1T Il y a 6 mois

    For neon I'm slightly confused, I often see bright pink or really bright blue or something in neon signs, but neon doesn't seem to give off blue light at all? Or is this completely unrelated?

  • Jan Jan
    Jan Jan Il y a 6 mois +1

    I have learned more from u teacher!😍😍

  • riyad if
    riyad if Il y a 6 mois

    Awesome demonstration !!

  • Simrandeep Kaur
    Simrandeep Kaur Il y a 6 mois

    you are just simply great, just loved it. Thankyou so much

  • Amaan Abbasi
    Amaan Abbasi Il y a 6 mois

    Energy absorb by electron but can a nuclear absorb energy if it can then what will happen after it ??

  • Peter Geronimi
    Peter Geronimi Il y a 7 mois +1

    That was helpful thank you!

  • Max Covella
    Max Covella Il y a 7 mois

    No it wasn’t helpful fuckhead

  • James Bernard Buenviaje
    James Bernard Buenviaje Il y a 7 mois

    How does the photon theory of light account for atomic spectra?

  • Whisper csgo
    Whisper csgo Il y a 7 mois

    Can I identify the element based off of the emission spectrum?

  • D8Football
    D8Football Il y a 8 mois

    what does discrete mean?

    • Dennis Bolanos
      Dennis Bolanos Il y a 7 mois

      The word discrete means broken up or separated; its opposite is continuous.

  • Nargis Khatun
    Nargis Khatun Il y a 8 mois


  • noire
    noire Il y a 9 mois

    I'm Turkish and all the Turkish Chemistry/Physics YT channels either had no videos on this subject or had uncomfortably shitty ones(except for khanacademy-turkey maybe, but theirs was not as detailed as I wanted it to be). Glad I know a bit of English, I managed to understand your video, it helped me a lot. Thank you.

  • angu raj
    angu raj Il y a 9 mois

    It is really useful sir.

  • Jaric Wiegman
    Jaric Wiegman Il y a 9 mois +1

    Nuclei is plural

  • sarvesh kumar
    sarvesh kumar Il y a 10 mois +1

    That was surely helpful 😊

  • Zalland Kasi
    Zalland Kasi Il y a 10 mois

    outstanding video man super helpful!!!!!!

  • Hanna Müller
    Hanna Müller Il y a 10 mois

    Very good video. I`m german but I still understood your topic. Thanks for your video because there are no good ones on this topic in german...

  • Molly Pete
    Molly Pete Il y a 10 mois


  • Danny Carter
    Danny Carter Il y a 10 mois

    so when a photon is absorbed it gets too much energy and it has to let go so when it lets go it the electron trying to abide to the law of conservation of mass and when it does that it emits light. Is that right?

  • Jeff Baller
    Jeff Baller Il y a 10 mois

    This sucks

  • Clifford inggs
    Clifford inggs Il y a 11 mois

    cool, I see the light. Nice Simulator. never had this when I was younger.

  • Howchen
    Howchen Il y a 11 mois

    Why would shooting electrons at gas make the electrons of hydrogen atoms go down an energy level???

    • Dennis Bolanos
      Dennis Bolanos Il y a 7 mois

      When an electron gets excited by absorbing light, it moves to a higher energy level, and then it returns to a lower level (ground state) and releases the energy in the form of light.

  • Ronald Ead
    Ronald Ead Il y a 11 mois

    You da man.

  • Mustafa Kemal Alemdar
    Mustafa Kemal Alemdar Il y a 11 mois

    rainbow has just 3 base color.. others are merg result

  • Muhammad Hasnain
    Muhammad Hasnain Il y a 11 mois


  • Joy Youssef
    Joy Youssef Il y a 11 mois


  • gehad yasser
    gehad yasser Il y a 11 mois +2

    Veryyy helpful thankss a lot lovee ur videos!

  • Eden Construction
    Eden Construction Il y a 11 mois

    thanks for the taking to time to produce this video to help others, good work.....Thanks.

  • Jurrell Belonga
    Jurrell Belonga Il y a 11 mois +1

    Booooooo u suck

  • JM G
    JM G Il y a an

    Which atoms absorb and emit radio waves? Is there a list of the emission spectra that involves radiations other than just visible light?

  • ティンコティンコ

    adam loyte