The Geiger Marsden Rutherford Gold Foil Experiment - IB Physics

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The Geiger-Marsden Experiment (also called the Rutherford Gold Foil Experiment) disproved the plum pudding model of an atom and predicted instead that an atom has a small, dense nucleus surrounded by mostly empty space. This lecture explains how the experiment was done and what conclusions were drawn from it.

Check out my channel for lecture videos on the entire IB physics curriculum organized by topic.

0:00 Facts about the experiment
0:33 The plum pudding model
1:26 Why gold foil?
2:25 Alpha particles
3:19 Predictions of the plum pudding model
5:34 Results of the experiment
6:07 Why this implies the nuclear model
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This is pretty cool. Really liked the drawings, and the experiment made intuitive sense.

acomfyslugcat
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i've seen so many vids trying to understand this, but this was the one!good job!

eleniam
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Its finally you who nailed it! No doubts now.

palak
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Hi andy, your videos are crazy good and probably the best in the internet for IB physics, thank you very much for posting them.

theodyssey
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bro this is a great channel thank you!

lisasolomey
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Thank you for this video!! This was so helpful for my modern physics class! :) I hope you make more videos in the future!

nicoleh
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Very interesting concept but that plum pudding looks quite unappetizing so frankly I'm glad I'm not surrounded by tiny versions of it lol

elibardash
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Still waiting for the day this legend will start uploading HL content 🙏

as
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Thank you Sir. This was so well explained 🎉

simplysass
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please make more videos, those are so interesting! <3

wateruners
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*me who has been stressing cause this wouldnt stick in my head* thank you kind sir I actually understand it now

Lisa_deez
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hello! thank you for your videos, I was the top student in biology but chose physics instead because I found it more interesting, thank you for reminding me of how fun physics is.

could you perhaps do a video about topic 10: fields?

Anything
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Hello thanks for the videos, I am one of other people who are able to understand the topic easily with your help.

I was wondering if you were able to make videos on HL topic please it would be really helpful

muzaffarshaik
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Please make a video on Calculus. waiting

jaykolhe
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is the setup you have shown was the original experimental setup by Geiger and Marsden and was it performed in the year 1911 only ??

soumyadipmoitra
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Your videos are really awesome would you mind doing some videos on topic 9 Wave phenomenon?

aburntnugget
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Hey, could you please do some of the HL topics too? Thanks a lot!

XkshatriyaX
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Hello! I am currently studying for May 22 exams and was just wondering if the units are complete? I know that a couple of videos are missing from Unit 7: Atomic, Nuclear, and Particle Physics, but I wanted to know if maybe another Unit was missing a couple of videos or subtopics. I also wanted to take the time to thank you for all of your videos; they are the reason I might not fail physics haha

martinskinner
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I can see the experiment shows that there is/are some denser particle(s) in the atoms, but I don’t understand why it proves that the denser part is in the center of the pudding.

juniorcyans
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Hey, is there any possibilities that you continue making videos?
I can't find better teacher than you.

neginfereydoni
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