Elements & Compounds

Front

What is the smallest unit of an element?

Back

An atom.

Front

What is the smallest unit of a compound?

Back

A molecule.

Front

How many hydrogen atoms are in a molecule of glucose (C6H12O6)?

Back

12.

Front

What is an atom?

Back

The basic unit of a chemical element.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a molecule?

Back

The smallest unit of a compound that retains the properties of that compound.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

Give an example of an element.

Back

Oxygen (O).

Front

Give an example of a compound.

Back

Water (H2O).