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We need proof !!!
I, Democritus; have a philosophical theory that the unit of matter is made up of small hard particles called atomos but I can't prove this.
Sir Dalton, what makes you preoccupied lately. I see less of you
I'm making an Atomic theory and compared atom to a billiard ball. It is indivisible with no solid parts. Atoms with the same element have the same masses but different elements have different masses.
Dalton's Billiard Ball Model
J.J Thomson's "Plum Pudding" Model
I thought to balance atom that is positively charged you will need mass of electrons around it but my evidence prove me wrong.
Sorry to hear that.
Though you were able to discover electrons.
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