Front

What was observed during the gold foil experiment conducted by Ernest Rutherford?

Back

Most of the alpha particles went straight through the gold foil, but a few bounced back, indicating that atoms have a small, dense nucleus.

Front

Who is responsible for the Bohr Model of the atom?

Back

Niels Bohr is the scientist responsible for the Bohr Model.

Front

What does the Plum Pudding Model represent in atomic theory?

Back

The Plum Pudding Model represents the idea that the atom is composed of a positively charged 'soup' with negatively charged electrons distributed throughout.

Front

What conclusion did J.J. Thomson reach from the Cathode Ray Tube experiment?

Back

Thomson concluded that the atom is a positively charged particle with negative electrons distributed throughout.

Front

Who is credited with the Planetary Model of the atom?

Back

Ernest Rutherford is credited with the Planetary Model of the atom.

Front

What is the significance of the gold foil experiment in atomic theory?

Back

The gold foil experiment provided evidence for the existence of a nucleus in the atom, changing the understanding of atomic structure.

Front

What are the main components of the Bohr Model?

Back

The Bohr Model includes a central nucleus surrounded by electrons that orbit in fixed paths or energy levels.

Front

How did the Plum Pudding Model differ from the Rutherford Model?

Back

The Plum Pudding Model suggested that electrons were embedded in a positively charged 'pudding,' while the Rutherford Model proposed a central nucleus with electrons orbiting around it.

Front

What was the primary focus of J.J. Thomson's research?

Back

J.J. Thomson focused on the discovery of the electron and the structure of the atom.

Front

What did the results of the gold foil experiment suggest about the size of the nucleus compared to the atom?

Back

The results suggested that the nucleus is very small compared to the overall size of the atom.