Atomic History

Front

Who proposed the idea that matter is made up of indivisible particles called atoms?

Back

Democritus

Front

What is the current model of the atom that describes electrons in probabilistic terms?

Back

Quantum Mechanical Model

Front

In the Bohr model, where are the electrons located?

Back

In specific energy levels or orbits around the nucleus.

Front

Which scientist is known for the Plum Pudding model of the atom?

Back

J.J. Thomson

Front

What is the definition of an atom?

Back

The smallest building block of all matter.

Front

How does the Rutherford model of the atom differ from the Bohr model?

Back

Rutherford's model has electrons floating in space, while Bohr's model has electrons in fixed orbits.

Front

What did Rutherford's gold foil experiment demonstrate?

Back

The existence of a dense, positively charged nucleus in the atom.

Front

What is the significance of the Quantum Mechanical Model?

Back

It incorporates the principles of quantum mechanics to describe the behavior of electrons.

Front

What did J.J. Thomson discover about the atom?

Back

He discovered the electron and proposed the Plum Pudding model.

Front

What is the main feature of the Bohr model?

Back

Electrons travel in fixed orbits around the nucleus.