Chemistry 10-19-09 Dalton’s Atomic Theory vs. Modern Atomic Theory
CHEMISTRY: Wow! What a lot of theory today! So the smallest thing that can be that thing is an atom. How do we know that? Well, we have to start at the beginning, and that’s Dalton’s Atomic Theory. Great job today comparing it with the Modern Atomic Theory. Keep those examples in mind when you’re studying for the test – especially when it comes to explaining those laws. 
October 20th, 2009 at 9:36 AM
Who was the first to suggest the atom? Was it Democritus or Dalton?
[Reply]
Drew Fondren C6 Reply:
October 20th, 2009 at 8:58 PM
Democritus was the first person to suggest the atom.
[Reply]
October 20th, 2009 at 5:48 PM
Katie, i’m pretty sure it was Democritus, but nobody really believed him until Dalton came into the picture.
[Reply]
October 20th, 2009 at 6:38 PM
Did Dalton have any idea what atoms looked like?
[Reply]
October 20th, 2009 at 8:03 PM
matt, no dalton didnt have any idea he just had guesses. he thought atoms were round balls that varied in size but he did know they were very small.
[Reply]
October 20th, 2009 at 8:07 PM
Even if he did just have guesses, I think it’s pretty amazing how close he came to the modern theory.
[Reply]
October 22nd, 2009 at 5:23 PM
who did the gold foil experiment again?
[Reply]
kaitlyn vincent c-6 Reply:
October 22nd, 2009 at 5:25 PM
Madison- it was Rutherford
[Reply]