XI -2 #4 - Discovery of Nucleus - Rutherford's experiment

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  • เผยแพร่เมื่อ 31 ธ.ค. 2024

ความคิดเห็น • 89

  • @shankarmurthy145
    @shankarmurthy145 4 ปีที่แล้ว +14

    Creative teacher + fun learning=excellent class
    WHICH IS HERE

  • @christinaevangelin.lmicroi3911
    @christinaevangelin.lmicroi3911 6 ปีที่แล้ว +10

    Thank you so much mam. Every concepts are very clear to me. Your soo enthusiastic. Love the way you teach.

  • @mehreennaeem3983
    @mehreennaeem3983 5 ปีที่แล้ว +5

    MashAllah she is really dedicated ...I spent two hours trying to learn this and here she just explained it in a matter of minutes

  • @ashoksundari1234
    @ashoksundari1234 5 ปีที่แล้ว +2

    You are my favourite chemistry teacher....you made my chemistry easy

  • @gandepallichandrakala9637
    @gandepallichandrakala9637 4 ปีที่แล้ว +3

    Mam I have a dought ''protons are positively charged'' than how they can combine in the nucleus with neutrons ?

    • @akhileshnair1244
      @akhileshnair1244 3 ปีที่แล้ว

      they arent combined... they just exist beside the neutrons

  • @brajesh137
    @brajesh137 5 ปีที่แล้ว +1

    👍🏻👍🏻👍🏻👍🏻👍🏻Amazing explanation

  • @inshashahnawaz8785
    @inshashahnawaz8785 5 ปีที่แล้ว +1

    I didn't expect it so simple. Thank you Mam.. You just finely explained this in simple words!

  • @neelkanthbiradar1830
    @neelkanthbiradar1830 3 ปีที่แล้ว

    Nice Explanation

  • @mehrajmir2538
    @mehrajmir2538 3 ปีที่แล้ว

    Good teaching

  • @AbdulHameed-oi2hk
    @AbdulHameed-oi2hk 7 ปีที่แล้ว +2

    Thanks. You are so enthusiastic

  • @pravallikan4354
    @pravallikan4354 4 ปีที่แล้ว +1

    Super ma'am.....u are really great

  • @PushpendraSingh-nn6ew
    @PushpendraSingh-nn6ew 6 ปีที่แล้ว +5

    Had I discovered these videos earlier it would have been more interesting learning Science.

  • @rajaahlmohaamad4906
    @rajaahlmohaamad4906 5 ปีที่แล้ว +2

    Hello mam. Excellent explanation. Thank you.

  • @rojarani7455
    @rojarani7455 6 ปีที่แล้ว +1

    nice teaching mam

  • @kavi085
    @kavi085 3 ปีที่แล้ว +1

    Thank you mam👌

  • @asradhya7670
    @asradhya7670 5 ปีที่แล้ว +1

    amazing explaind mam, tq

  • @mehrajmir2538
    @mehrajmir2538 3 ปีที่แล้ว

    My favourite chemistry teacher

  • @lingarajparichha5106
    @lingarajparichha5106 5 ปีที่แล้ว +1

    Thanks mam
    U made it easier than books

  • @monalikadoda2232
    @monalikadoda2232 4 ปีที่แล้ว +1

    thank you so much mam

  • @angelhapuarachchi7816
    @angelhapuarachchi7816 7 หลายเดือนก่อน

    Thank you very much. Your explanations are very clear.❤

  • @Zeckricks
    @Zeckricks 6 ปีที่แล้ว +1

    Madam how could he decide the nucleus position to be at centre and not somewhere else like top, bottom, left, right etc

    • @KrishnaCalling
      @KrishnaCalling 5 ปีที่แล้ว +1

      If it is not in centre their would be attractive force between nucleus and electron but uneven as it will closer but from centre their chances of attracting would be less

  • @mohank4260
    @mohank4260 4 ปีที่แล้ว

    Mam, Fine.

  • @devil_____0808
    @devil_____0808 ปีที่แล้ว

    Nice look ❤

  • @rustamkurrey4681
    @rustamkurrey4681 7 ปีที่แล้ว +3

    Thanks mam it helps me lot...plz upload more vedios chemistry

    • @SeemaDhawanArora
      @SeemaDhawanArora  7 ปีที่แล้ว +1

      Happy to help. Yes I am trying to upload videos as often as possible.

  • @poonampandey386
    @poonampandey386 4 ปีที่แล้ว

    Ma'am u are a excellent teacher 👍

  • @surajpoudel4431
    @surajpoudel4431 6 ปีที่แล้ว +1

    Mamm im confused with the discovery of proton...who did discovered proton E goldstein or Rutherford.? I read somwhere E goldstein in the year 1886 n somewhere rutherford coin the word proton in 1911. So pliz do clear my doubt.

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว

      Goldstein did. Naming it is different issue.

  • @mmea573
    @mmea573 5 ปีที่แล้ว

    Thanks awesome explanation

  • @maheshtelimety1740
    @maheshtelimety1740 6 ปีที่แล้ว +1

    U r excellent mam

  • @sudharanjan6195
    @sudharanjan6195 5 ปีที่แล้ว

    Thanks for the guides

  • @khushiparikh4379
    @khushiparikh4379 4 ปีที่แล้ว

    You are simply amazing😊👍❤️

  • @subhamoyrex-g7469
    @subhamoyrex-g7469 6 ปีที่แล้ว

    you are superb mam thanx for uploading these video

  • @hashira5555
    @hashira5555 4 ปีที่แล้ว

    best

  • @jinanp4152
    @jinanp4152 4 ปีที่แล้ว

    Mam, why they remove electrons from helium atom??

    • @dramanebeloum8239
      @dramanebeloum8239 3 ปีที่แล้ว +1

      Because atom is neutral
      If we removed electron. We will have more proton than electron then the particle will positively charged

  • @ayushraj8899
    @ayushraj8899 6 ปีที่แล้ว +2

    Maaam I have a question
    😕 In Rutherford model of atom why only gold foil was selected?
    Why not any other material ......
    He would also had choose a tissue paper, it also have atoms...??
    Why ??
    Why not any other substance ....??

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +3

      Gold is the most malleable metal. It can be beaten into an extremely thin sheet. That was what was needed, a solid that would be just about 2-3 atoms thick. That is why gold was used.

    • @ayushraj8899
      @ayushraj8899 6 ปีที่แล้ว +2

      Okk thank u mam

    • @rekhak3343
      @rekhak3343 6 ปีที่แล้ว

      Good question

    • @surajpoudel4431
      @surajpoudel4431 6 ปีที่แล้ว +1

      Mamm im confused with the discovery of proton...who did discovered proton E goldstein or Rutherford.? I read somwhere E goldstein in the year 1886 n somewhere rutherford coin the word proton in 1911. So pliz do clear my doubt.

    • @karthickkrish1556
      @karthickkrish1556 5 ปีที่แล้ว +2

      @@surajpoudel4431 Goldstein discoverd proton and Rutherford discoverd where proton is located in atom.

  • @drwaqargillani
    @drwaqargillani 3 ปีที่แล้ว

    Thank you So much mam.You are chemistry guru

  • @vijayalakshmisenthilkumar1273
    @vijayalakshmisenthilkumar1273 2 ปีที่แล้ว

    Thanks a lot mam

  • @kavitarawat9175
    @kavitarawat9175 7 ปีที่แล้ว

    If the presence of electron was not clarified before rutherford model then how rutherford get alpha particle ...how they remove electron from the helium atom

    • @SeemaDhawanArora
      @SeemaDhawanArora  7 ปีที่แล้ว +1

      Electrons were discovered by JJ Thomson before Rutherford tried to use his experiment to find their position in an atom. In the discharge tube electrons were shot out of the gas in it using high voltage current. So ionization was already being done. And Alpha particles are created by ionization of Helium gas which was already being done at the time.

    • @SeemaDhawanArora
      @SeemaDhawanArora  7 ปีที่แล้ว +1

      Please do watch all the videos regarding the structure of atom. I have covered the entire timeline in these. Here is the link to a few
      th-cam.com/video/joWGcWQiUq4/w-d-xo.html
      th-cam.com/video/tDd53WzUXWc/w-d-xo.html
      th-cam.com/video/buAqeWvePGM/w-d-xo.html

  • @jairamgupta4254
    @jairamgupta4254 6 ปีที่แล้ว

    Sir Thomson's said that the sphere is positively charged, why didn't the alpha ray got deflected everytime?

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +3

      Jairam Gupta alpha ray has 2+ charge while proton has 1+ charge. If protons were scattered the single protons would not be strong enough to repel and deviate a more positive alpha particle. But if protons were at one place as explained by Rutherford, then they will be stronger than alpha particle and push it to deviate it. So Thomson’s model cannot explain the deviation.

  • @generalesdeath7263
    @generalesdeath7263 6 ปีที่แล้ว

    ma'am how do i convince myself that some of the alpha particles went straight through the empty spaces even if there were many electrons present around the nucleus? i am confused because the speed of electron is really high and the orbits do not lie in the same plane as well.

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +2

      mahika Angel Imagine the room you are sitting in is an atom and there are about 20 thermocol balls of the size of paper pins floating in the room. If I throw a football in the room will it be affected by the pinhead thermocol balls? The atom is the room, the thermocol balls are electrons and the football is an alpha particle. I hope the analogy makes it clear to you.

    • @akhileshnair1244
      @akhileshnair1244 3 ปีที่แล้ว

      @@SeemaDhawanArora that wonderfully explains it... should have been put in the video

  • @hunainashraf5858
    @hunainashraf5858 6 ปีที่แล้ว

    mam can u plzz tell me why the alpha particles that strike the nucleus gets completely rebounded. why dnt they deviate instead of completely being rebounded

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +2

      Hunain Ashraf when you hit a ball at 90* angle on a hard wall it comes back straight. It is the same thing.

  • @desikhan460
    @desikhan460 6 ปีที่แล้ว

    Very impressive madem

  • @GANAVI50
    @GANAVI50 6 ปีที่แล้ว

    Hello mam,i have small doubt I.e.,why Rutherford used alpha rays although they have very low penetrating power and why he taken gold foil?

    • @akhileshnair1244
      @akhileshnair1244 3 ปีที่แล้ว +1

      alpha rays have high pass and are small... also he took gold foil cuz gold in unbelievably malleable.. it can be beaten down to thin sheets of 2 or 3 atoms

  • @intazarkhan6188
    @intazarkhan6188 5 ปีที่แล้ว

    thanks a lot..mam

  • @saumyashubham1042
    @saumyashubham1042 6 ปีที่แล้ว

    mam why only alpha particles was chosen for rutherford's experiment
    why not the beta particles

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +1

      Saumya Shubham I feel Rutherford might have tried using Beta particles too. But think what would happen if he did. The alpha particles are deviated due to the positive nucleus where all the positive charge is concentrated at one point. So it is strong enough to repel the alpha particles. But electrons in an atom are scattered so negative charge is not concentrated at one point and is diffused and weak. So even if we used beta particles they would not be affected by the electrons and would rather be attracted by the positive nucleus.

    • @ayushraj8899
      @ayushraj8899 6 ปีที่แล้ว +1

      Seema Dhawan Arora
      Could rutherfoed had also used hydrogen nucleus i.e., proton.
      I think it's a single positive charge and it be used very easily because here is no matter of neutrons....

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +1

      @ Ayush Raj If he took Hydrogen, how would he keep the atoms static? The atoms of a gas move constantly. So how would you measure the angles of deviation of alpha particles hitting the nucleus if the target itself is moving?
      Besides the mass of alpha particle is more than H. So imagine if a football hits a table tennis ball which will deviate more? The H atom will be pushed away by the alpha particle.

  • @shailusri6237
    @shailusri6237 5 ปีที่แล้ว

    Thank u so much mam ✌✌

  • @footylove8058
    @footylove8058 5 ปีที่แล้ว

    Hi man 😊nice teaching got out of out

  • @devil_____0808
    @devil_____0808 ปีที่แล้ว

    Nice. B 👌👌 S. .....😜😜😜

  • @muhammadzahoorkhan1546
    @muhammadzahoorkhan1546 6 ปีที่แล้ว

    you say that scientist claimed that gold foil is just 2 atom thin than how can he prepare suvh thin foil

    • @SeemaDhawanArora
      @SeemaDhawanArora  6 ปีที่แล้ว +1

      You would be surprised at how malleable gold is. The reason he used a gold foil was because it could be made so thin. As for 2 atom thick layer, it was his claim. It might have been slightly thicker but thin enough to facilitate the observation of deviation.

  • @nidhijha9583
    @nidhijha9583 6 ปีที่แล้ว

    Thanks

  • @tiktoklikes6580
    @tiktoklikes6580 5 ปีที่แล้ว +1

    Goldstein discovered protons in 1886 but were named protons in 1920

  • @MyLovelyCreations
    @MyLovelyCreations 7 ปีที่แล้ว +1

    Thank u mam it helped me a lot....

  • @arbabchangaizkhan8264
    @arbabchangaizkhan8264 3 ปีที่แล้ว

    Proton was discovered in 1886 by goldstein

  • @alam05
    @alam05 2 ปีที่แล้ว

    School se accha padhati hai mam

  • @amitmalik4446
    @amitmalik4446 4 ปีที่แล้ว +1

    Mam you are wonderful but please teach in Hinglish

  • @mudassirmemon573
    @mudassirmemon573 6 ปีที่แล้ว

    Mam your video is soo amazing but plzz I request you to that this video is explain in urdu plzzz

  • @vikaspanchal2108
    @vikaspanchal2108 5 ปีที่แล้ว

    You are nice mam