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(0.3)HISTORY OF ATOM- Antimony explains













I could remeber during the 1890’s when I met this friend of mine who contributed a lot to the discovery and explanation of the atom, I call him J.J Thomson😋

J.J Thomson was a physicist who is credited for discovering the 

electron.😙 He used his research on cathode ray tube technology in this 

discovery. 

CATHODE RAY TUBE (stop wondering. Antimony got you)

How does this Tube Work?🤔

1. Nearly Empty tube (Air has been sucked out)😉

2. An electric charge is passed through the tube. Travels from cathode to 

anode😮

3. The charge is invisible, so to see where it traveled a fluorescent screen is 

placed at back of tube. Where the beam hits, a 

dot will appear on the screen. You could also use a 

fluorescent gas and the whole tube will light up.😫

4. This beam will always travel straight if not 

interfered with.😏

5. The deflection coils each have a specific charge. 

One is positive and the other is negative.🤐

6. Thomson showed that 

the charge would deflect away from the negative 

coil. He then stated that this charge was thus a 

negative charge.🤥

J.J Thomson was an excellent physicist and thus did not stop when he had found this negative 

charge. Through a series of clever experiments he was able to predict the mass of this charge. 

SCIENTIFIC INTERPRETATION AT ITS BEST😎😎😎

He then found out that this charge was 1000 times lighter that a hydrogen atom. He made a bold 

statement saying that this negative charge must be inside an atom. This negative charge (he called 

corpuscles) later became known as the electron. ( This guy self get time o😐. My devoted friend🤗

Now let's check the atomic model he postulated.

Using what he had discovered, Thomson predicted what an atom should look 

like. These are the key points to Thomson’s Atomic Model: (note this😶

1. Because of its design this model is known as the plum 

pudding model😁

2. Each atom is a sphere filled with positively charged 

‘fluid’. This resembles the sticky jam part of a pudding.

3. Corpuscles (later called electrons), are the negatively charged particles 

suspended in this ‘fluid’. This resembles the plums in the pudding.

4. He did not predict the movement of these electrons😉

 Mr thompson was really great. I think HD loves plum pudding. He just gave a nice theory but let's continue the journey down to our present day model.🤐



           By: Oshinowo Testimony

                  Antimony


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