Atomic Theory

Dalton's Theory - 1803 - Atoms are uncuttable. All atoms of the same element are alike.

Thomson's Theory - 1897 - Atom are a positively charged substance with negatively charged particles scattered about.

Rutherford's Theory - 1908 - Atoms are made mostly of empty space with a dense, positively-charged nucleus.

Bohr's Theory - 1913 - Electron's move in definite energy levels around the nucleus

Current Theory - Now! - Electron's do not move in orbits but instead the most likely energies to find an reform an electron cloud

Dalton's Theory: Billiard ball

Thomson's Theory: Chocolate chip cookie

Rutherford's Theory: Cherry with a pit

Bohr's Theory: Solar system

Current Theory: Cotton ball