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Dudes (Chemistry Scientists)

There
are several "dudes," famous chemistry folks that students need to be
familiar with. These dudes (Democritus, Dalton, JJ Thompson, Millikan,
Rutherford, Bohr, Heisenberg, De Broglie, and Planck) all did
experiments and came up with different and improved atom models. The
current model is the elctron cloud or quantum mechanical model which was
formulated by Heisenberg and De Broglie.

Heisenberg
and De Broglie came up with the current electron cloud model, but we
draw Bohr's planetary model the most often because it easier to count
the electrons. There's a TedEd video about the progression - HERE.

Electrons
are tricky because they move constantly and at high speeds.
Heisenberg's Uncertainty Principle states that you cannot know both the
speed and location of an electron - you can only know one - because
measuring either one, changes the other. DeBroglie's wave theory helps
explain why electrons sometimes act like particles and sometimes are
compared to waves.

For more information about the evolution of the atomic model, check out this link. And here is a video!

Here are some Dude Quizlet Flashcards to help you out.

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