Atomic Structure and History

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom that have no charge (neutral).

Front

What is an atom?

Back

An atom is the smallest particle of an element that retains the properties of that element.

Front

In an atom, what is the relationship between protons and electrons?

Back

In a neutral atom, the number of protons is equal to the number of electrons.

Front

What are subatomic particles?

Back

Subatomic particles are the particles that make up an atom, including electrons, protons, and neutrons.

Front

Who proposed the 'plum pudding' model of the atom?

Back

JJ Thomson proposed the 'plum pudding' model, which suggested that electrons are scattered within a positively charged material.

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the charge of electrons?

Back

Electrons have a negative charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.

Front

Who is known as the father of the atomic theory?

Back

John Dalton is known as the father of the atomic theory.