Parts of the Atom & Elements

Front

What is a proton?

Back

A proton is a positively charged particle found in the nucleus of an atom.

Front

What is an atom mostly made up of?

Back

An atom is mostly made up of empty space.

Front

What is a neutron?

Back

A neutron is a neutral particle in the nucleus of an atom that has no charge.

Front

What are the positive particles of an atom called?

Back

The positive particles of an atom are called protons.

Front

What particles in an atom are neutral and have no charge?

Back

The particles that are neutral and have no charge are called neutrons.

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 an electron?

Back

An electron is a negatively charged particle that orbits the nucleus of an atom.

Front

How do protons and electrons compare in charge?

Back

Protons have a positive charge, while electrons have a negative charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.