Modern Atomic Theory

Front

What is the main idea of John Dalton's atomic model?

Back

The atom is indivisible and can't be divided into smaller parts.

Front

What charge do electrons have according to J.J. Thomson's discovery?

Back

Electrons have a negative charge.

Front

What distinguishes the Rutherford model from the Bohr model?

Back

Electrons surround the nucleus in specific energy levels in the Bohr model.

Front

What did Ernest Rutherford discover about the atom's structure?

Back

The atom has a small, dense, and positive center called the nucleus.

Front

What does the discovery of the electron reveal about the atom?

Back

The atom is made up of smaller particles.

Front

What is the nucleus of an atom?

Back

The nucleus is the small, dense, and positively charged center of an atom.

Front

How did J.J. Thomson's experiment change the understanding of atomic structure?

Back

It introduced the concept of electrons as negatively charged particles within the atom.

Front

What is the significance of energy levels in the Bohr model?

Back

Electrons occupy specific energy levels around the nucleus, which explains atomic stability.

Front

What is Dalton's atomic theory?

Back

It states that all matter is made of atoms, which are indivisible and indestructible.

Front

What is the role of the nucleus in an atom?

Back

The nucleus contains protons and neutrons, contributing to the atom's mass and positive charge.