Atoms

Front

What is an atom?

Back

The smallest piece of matter that still has properties of that matter.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What does the atomic number represent?

Back

The number of protons or electrons in an atom.

Front

What is the atomic weight?

Back

The average mass of an atom, typically measured in atomic mass units (amu).

Front

What is a proton?

Back

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

Front

What is a neutron?

Back

A neutral particle found in the nucleus of an atom.

Front

What is an electron?

Back

A negatively charged particle that orbits the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

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

Front

What is an element?

Back

A pure substance made of only one type of atom.

Front

What is a compound?

Back

A substance formed when two or more different elements chemically bond together.