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

Rutherford's

Front

Model after electron cloud discovery

Back

Quantum Mechanical

Front

Discovered electrons

Back

J.J. Thompson

Front

Atom structure: mostly empty space

Back

Positively charged nucleus