Atomic Theory
The Atomic Model Timeline
- The idea of what an atom is has changed over time.
- Different scientists and their discoveries have led to the development of the current model of an atom.
- Other examples include:
- The solar system (BIG made SMALL)
- The biological cell (SMALL made BIG)
The Democritus Model
- A Greek philosopher
- He conceived the idea of the atom to describe matter.
- Atom comes from the word atomos which means "indivisible".
- He believed that matter was finite (had a limit)
- He believed the smallest piece of matter was an indestructible and indivisible particle which he called the "atom".
The John Dalton Model
J.J. Thompson: The Plum Pudding Model
Read more about this topic: Outline Of Chemistry
Famous quotes containing the words atomic and/or theory:
“Take adultery or theft.
Merely sins.
It is evil who dines on the soul,
stretching out its long bone tongue.
It is evil who tweezers my heart,
picking out its atomic worms.”
—Anne Sexton (1928–1974)
“Every theory is a self-fulfilling prophecy that orders experience into the framework it provides.”
—Ruth Hubbard (b. 1924)