Atomic Structure & History

Front

Positive particles of an atom

Back

Protons

Front

Central region of an atom

Back

nucleus

Front

Neutral particles in an atom

Back

Neutrons

Front

"atomos" - uncuttable atom

Back

Democritus

Front

Electrons move in shells

Back

Bohr

Front

Atomic model represented in the picture

Back

Thomson's

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

Number of protons

Back

7

Front

Nucleus number

Back

4