Question

Describe Thomson’s cathode ray experiment and how the experimental results led to specific changes in the accepted model of the atom. Be sure to include a description of the atomic model that was accepted by the scientific community before this experiment as well as the atomic model that was accepted after this experiment.

Answer 1

@JoannaBlackwelder

Answer 2

Thomson had an inkling that the ‘rays’ emitted from the electron gun were inseparable from the latent charge, and decided to try and prove this by using a magnetic field.

His first experiment was to build a cathode ray tube with a metal cylinder on the end. This cylinder had two slits in it, leading to electrometers, which could measure small electric charges.

He found that by applying a magnetic field across the tube, there was no activity recorded by the electrometers and so the charge had been bent away by the magnet. This proved that the negative charge and the ray were inseparable and intertwined.

Answer 3

hi

Answer 4

hi tywower

Answer 5

hi

Answer 6

oh hello there

Answer 7

@JoannaBlackwelder

Answer 8

@sammixboo

Answer 9

@Aureyliant

Answer 10

@Kbug can you rephrase your response pls because it's for a research essay and i need it thanks

Answer 11

@Kbug @Kbug @Kbug @Kbug

Answer 12

@JoshKoikkara

Answer 13

sorry i forgot bout u

Answer 14

@Aureyliant !!

Answer 15

SOMEONEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answer 16

lol

Answer 17

I'm horrible at chem, I apologize but I don't want to mislead you.

Answer 18

k

Answer 19

@JoshKoikkara

Answer 20

@JoannaBlackwelder

Answer 21

@Goobinator

Answer 22

@Zander57

Answer 23

@JFraser

Answer 24

@jakematt24

Answer 25

idk sorry :P

Answer 26

@Trojan

Answer 27

josh u said u can help?

Answer 28

I NEED HELP SERIOUSLY

Answer 29

Hmm.. Sure, I'll help you but I won't actually answer the questions.

Answer 30

I'd look this one up in your notes. Remember that you can find the history of the atom and both the Crookes tube experiment on Wikipedia.

Answer 31

i know, the other guy copied and pasted from the internet

Answer 32

@JoannaBlackwelder

Answer 33

THOMSON’S FIRST CATHODE RAY EXPERIMENT

Thomson had an inkling that the ‘rays’ emitted from the electron gun were inseparable from the latent charge, and decided to try and prove this by using a magnetic field.

His first experiment was to build a cathode ray tube with a metal cylinder on the end. This cylinder had two slits in it, leading to electrometers, which could measure small electric charges.

He found that by applying a magnetic field across the tube, there was no activity recorded by the electrometers and so the charge had been bent away by the magnet. This proved that the negative charge and the ray were inseparable and intertwined.

THOMSON’S CATHODE RAY SECOND EXPERIMENT

Like all great scientists, he did not stop there, and developed the second stage of the experiment, to prove that the rays carried a negative charge. To prove this hypothesis, he attempted to deflect them with an electric field.

Earlier experiments had failed to back this up, but Thomson thought that the vacuum in the tube was not good enough, and found ways to improve greatly the quality.

For this, he constructed a slightly different cathode ray tube, with a fluorescent coating at one end and a near perfect vacuum. Halfway down the tube were two electric plates, producing a positive anode and a negative cathode, which he hoped would deflect the rays.

As he expected, the rays were deflected by the electric charge, proving beyond doubt that the rays were made up of charged particles carrying a negative charge. This result was a major discovery in itself, but Thomson resolved to understand more about the nature of these particles.

THOMSON’S THIRD EXPERIMENT

The third experiment was a brilliant piece of scientific deduction and shows how a series of experiments can gradually uncover truths.

Many great scientific discoveries involve performing a series of interconnected experiments, gradually accumulating data and proving a hypothesis.

He decided to try to work out the nature of the particles. They were too small to have their mass or charge calculated directly, but he attempted to deduce this from how much the particles were bent by electrical currents, of varying strengths.

Thomson found out that the charge to mass ratio was so large that the particles either carried a huge charge, or were a thousand times smaller than a hydrogen ion. He decided upon the latter and came up with the idea that the cathode rays were made of particles that emanated from within the atoms themselves, a very bold and innovative idea.

https://answers.yahoo.com/question/index?qid=20120110233243AAVXKEQ

NOTE : Read and Write According to your views !! This source Provided only for Reference.

Answer 34

@HackberryAbby18

Answer 35

@Hunterbuscus121

Answer 36

@Godlovesme

Answer 37

Emo kids dont help anymore... i give up on helping..

Answer 38

Wait, can u say your opinion about Thomson's Cathode Ray Experiment ?

WARNING: AVOID MASS TAGGING !!

Answer 39

he taged everyone on Open study :/

Answer 40

like wtf?

Answer 41

i need help not links and yes you can state your opinion

Answer 42

@tywower WARNING: AVOID MASS TAGGING !!

Answer 43

aye aye captain

Answer 44

can you help me @Wendysbro ?

Answer 45

@iGreen

Answer 46

I'm not quite sure. I'm better with stuff like math, history, computer science and basic to somewhat advanced chemistry.

Answer 47

hi @Afrodiddle can u help me w/o using the internet

Answer 48

such as copying and pasting

Answer 49

pls :)

Answer 50

will u do ur own research and stop trying to cheat?

Answer 51

eXCELLENT !!

Answer 52

umm im not cheating im supposed to get help not get unreliable information off the internet

Answer 53

especially from wiki

Answer 54

i just want some help that's all

Answer 55

Regardless.. not everyone on OS is reliable.

Answer 56

well i guess so.. goodbye for now then.

Answer 57

use Brainly, it is more realible