#1: Democritus contributed to our understanding of the atom in which of the following ways?
A. He hypothesized that all substances can be broken down into a smallest part called an atom.
B. He determined the mass of the electron.
C. He discovered the proton.
D. He determined the charge-to-mass ratio for the electron.
***MY answer: A
is that right?? :)
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#2: Which of the following tenets of the atomic theory did Thomson disprove?
A. All elements are made of atoms, which cannot be divided or broken down.
B. All atoms of a given element are identical.
C. Atoms can be mixed.
D. A chemical reaction happens when the atoms are rearranged.
**Idk this one :(
Yes you got that right
awesome!! but i don't get the second one at all :( help me please?? :D