Atomic Theory
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10 Terms
What did Dalton's Theory of 1803 propose about atoms?
Atoms are uncuttable and all atoms of the same element are alike.
What is the main idea of Thomson's Theory from 1897?
Atoms are a positively charged substance with negatively charged particles scattered about.
What did Rutherford discover about atomic structure in 1908?
Atoms are mostly empty space with a dense, positively charged nucleus.
According to Bohr's Theory from 1913, how do electrons move?
Electrons move in definite energy levels around the nucleus.
What is the Current Theory regarding the movement of electrons?
Electrons do not move in orbits but instead form an electron cloud based on the most likely energies.
What metaphor is associated with Dalton's Theory?
Billiard ball.
What analogy represents Thomson's Theory?
Chocolate chip cookie.
What analogy is used for Rutherford's Theory?
Cherry with a pit.
How is Bohr's Theory symbolized?
Solar system.
What metaphor describes the Current Theory of atomic structure?
Cotton ball.
