Physical Science 7.4g - Ernest Rutherford

[babyge2]

This really helped. You're a good explainer

[TechnoManiac2]

I can't wait to learn more about radiation.

[ajbizzle93]

Really helped me with my Modern Physics semester project!  Very well explained.

[MsDIVA131]

This was very helpful, thank you :)

[KimoCollins]

and how come there is just one proton set off to the side. shouldn't it be part of the Oxygen.

[KimoCollins]

what are alpha particles?

[derekowens]

@KimoCollins An alpha particle is a bundle of particles made of two protons and two neutrons. It is the same thing as a helium nucleus.

[KimoCollins]

@derekowens cool beans

[tacoslikeobama]

wow i feel like a nerd... but i have to do homework :(

[tacoslikeobama]

the foil was 1.5 microns thick

[TheWingStorm]

This helped me so much. Thank you so for your time good sir!

[zzzmemphis05]

1908 was the year

[hermionebaby]

thanks a lot!!

[naruto2710]

do you know why gold was used in the experiment

[derekowens]

@naruto2710 Gold can be hammered into a very VERY thin sheet. I believe this is the reason it was suited for this experiment.

[AndyHipHopBaby]

thanks , this really helped me :)

[DeusExWolksvagen]

Alchemy and witch craft!

[idaijuken]

Please allow embedding.

[derekowens]

@idaijuken Done

[idaijuken]

@derekowens Thanks!

[idaijuken]

@derekowens Thanks!

[MasterChief241]

Ok, all i want to know is HOW rutherford bombarded the oxygen nucleus what was the apparaus and instrments he used.

[Musakhann]

rutherford did not do gold leaf experiment, it was giger and marsten or something

[derekowens]

@Musakhann Yes, that's correct. It was Geiger and Marsden, but I think it was Rutherford's idea, and he was in charge of it. Geiger and Marsden did the experiment under Rutherford's direction, and Rutherford interpreted the results and wrote the paper on it, so the experiment is named after Rutherford, probably for good reason.

[MasterChief241]

why is there a proton that does not stay in the nucleus of oxygen to form fluorine

[TeenageIronman]

@MasterChief241 hey indeed, shouldnt it transmute into fluorine 19 and stay stable ?

[miimo4life]

What i dont get is if he hit a nitrogen(7 protons) atom with an alpha particle (2 protons,2 neutrons) should it not be transmuted into fluorine(9 protons) and not into oxygen(8 protons)?

[intentionallyblank33]

nice video!. Referring to the comment above, the atomic mass of an oxygen atom that has nice protons IS 17 amu; it just happens to be one of several isotopes of oxygen. If you average them all out you get an average atomic mass of 15.999 amu.

[eeeerick44]

nice video!!!!

[sean2939]

Great video!

Its really helped

Thanks

[FarFallen1]

Careful ! At 6:36 you claim the atomic mass of oxygen to be 17 when it is listed as 15.999 amu.

[derekowens]

Whoa! Thanks, I'll check on that and see if I can fix it.

[FarFallen1]

Maybe it is supposed to be isoptopic oxygen. I am searching the net for the actual equation-unsucessfully so far. I like your video; please don't take my comment as criticism. The gold foil experiment is right on 100%.