Atom Basics

Front

What is an atom?

Back

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

Front

What are the three main particles in an atom?

Back

Protons, Neutrons, and Electrons.

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

What is the charge of a neutron?

Back

Neutrons have no charge (they are neutral).

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What does the atomic mass represent?

Back

The atomic mass represents the average mass of an atom, taking into account the number of protons and neutrons.

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two-letter abbreviation used to represent an element.

Front

What is the chemical symbol for Oxygen?

Back

The chemical symbol for Oxygen is O.