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Problem 33

Ideas and Scientific Methods Was Democritus's pro…

Problem 32

Distinguish between Democritus's ideas and Dalton's
atomic theory.


- Matters are composed of atoms that can move freely in empty space.
- Atoms are solid, homogenous, can't be destroyed and can't be divided into smaller parts.
- Atoms of different elements have different sizes and shapes.
- Properties of matter are set by the size, shape and movement of the atoms that form the matter.
$\cdot$ Dalton's atomic theory:
- Matter is composed of atoms, which are the smallest components of the substance.
- Atoms can't be broken into smaller parts and can't be destroyed.
-The atoms of the same element have the same size, mass and chemical properties.
- Atoms from one element are different from other elements.
- Atoms can be combined in definite ratios to form compounds.
- Chemical reaction can cause the atoms to separate from each other, combined or
rearranged with each other.



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Video Transcript

So now work on problem 32 from chapter four. Okay, this problem. We're asked to distinguish between the ideas of Democritus and Bolton in terms of atomic theory. So first we can write about how they agreed. So we'll write about democratise and Dalton's ideas. Dalton certainly could have ah drew off of democratise in the formation of his theory. So they both believed that matter is composed of atoms. Um, they both believed that atoms were indivisible, that they could not be divided any further. They both believed that different elements gave rise to different Adams. So Dalton, we can talk about Dalton's ideas. So democratise went so far and then dolphin went a little further. He talks about how Adam's combined in whole number ratios to form compounds. Dalton also proposed for chemical reactions. The atoms are separated, combined or rearranged. So the reactivity of things that we see is related to this atomic scale change. So we can see, um, from the first page here that they had very similar ideas concerning structure of atoms and what made on Adam specific to an element adult in went further and talking about how compounds were formed, how reactions occur, and in that regard

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