Atomic Theory

Front

Who discovered the electron using the cathode ray tube experiment?

Back

Joseph Thomson

Front

What is the Atomos Theory and who proposed it?

Back

The Atomos Theory is the first theory about the atom proposed by Democritus.

Front

Who developed the Bohr model of the atom?

Back

Niels Bohr

Front

How is the Bohr model of the atom depicted?

Back

The Bohr model is depicted similarly to a planetary or solar system.

Front

Who discovered the nucleus using the gold foil experiment?

Back

Ernest Rutherford

Front

What is the significance of the cathode ray tube experiment in atomic theory?

Back

It led to the discovery of the electron, which is a fundamental particle of the atom.

Front

What did Democritus contribute to the understanding of atomic structure?

Back

Democritus proposed that matter is made up of small, indivisible particles called atoms.

Front

What are the main features of the Bohr model of the atom?

Back

The Bohr model features electrons orbiting the nucleus in fixed paths or energy levels.

Front

What was the main conclusion of Rutherford's gold foil experiment?

Back

The gold foil experiment concluded that atoms have a small, dense nucleus at their center.

Front

How did Thomson's model of the atom differ from Rutherford's model?

Back

Thomson's model (plum pudding model) depicted electrons embedded in a positively charged 'soup', while Rutherford's model introduced a nucleus.