Question

#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?? :)

Answer 1

#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 :(

Answer 2

Yes you got that right

Answer 3

awesome!! but i don't get the second one at all :( help me please?? :D

Answer 4

do u get the second one @.Sam. ??? :)

Answer 5

oh wait is the answer to #2, A???? they can't be broken down or divided??? :O

Answer 6

For our purposes, atoms are smallest object which can't be broken down into smaller parts, but Thompson said that atoms can be broken down, which is not true, so the best answer is A

Answer 7

great! thanks :) i'll post the last one in a new post :)