Atomic Models and History

Front

Electrons move in specific paths around nucleus

Back

Bohr

Front

Thomson's atomic model

Back

Best representation of the given picture

Front

Dalton's Atomic Theory: Elements consist of __________

Back

Atoms

Front

Conclusions from Rutherford’s gold foil experiment

Back

1. Atom is mostly empty space 2. Nucleus is positively charged 3. Atom has a small dense nucleus 4. All answers are correct

Front

"atomos" - uncuttable atom

Back

Democritus

Front

Dalton's Model

Back

Front

Model after nucleus discovery

Back

Front

Model after electron cloud discovery

Back

Front

Discovered electrons

Back

J.J. Thompson

Front

Atom structure: mostly empty space

Back

Positively charged nucleus