Atoms, Elements, Molecules, & Compounds

Front

What is an atom?

Back

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

Front

What is an element?

Back

An element is a pure substance made of only one type of atom.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

How many protons are in a hydrogen atom?

Back

1

Front

What charge do protons have?

Back

Protons have a positive charge.

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge.

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

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