Atomic thoery
Texte du Storyboard
- Democritus early atomic theory
- The atom is the smallest unit in the world so it cant be broken down any more, which means its a solid!
- John DaltonDalton atomic theory
- I agree with Democritus, atoms are indestructible, and every element is made of atoms.
- They've got it all wrong! You can break an atom down. They have positive and negative charges! It sorta looks like a chocolate chip cookie!
- J.J ThomsonChocolate chip model
- Electrons- negative charge Protons- postitive charge attracted to charged oil
- Robert Milikan oil drip experiment
- Ok, I think J.J is on to something... Let me test with this oil. Aha! I have proved that electrons have a charge because of this charged oil!
- Robert is correct, there are charges, but after I placed this foil down I have discovered that most of the matter comes from the center...I will call it the nucleus
- Earnest RutherfordGold foil experiment
- A lot of empty space in atom
- Niels BohrBohr Model
- We are all getting the same idea, except I believe that that electrons are orbiting around the nuecleus.
- All these mean are somewhat correct with their theory, besides Democritus and Dalton, but the particles on the outside of the nucleus are actually like waves.
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