Chemistry Quiz

What is the smallest unit of an element that still has the properties of that element?

• Molecule

• Compound

• Atom

• Mixture

Which of these is NOT an element?

• Carbon

• Oxygen

• Water

• Gold

The chemical formula for carbon dioxide is CO2. What does this tell us?

• There are two carbon atoms and one oxygen atom.

• There is one carbon atom and two oxygen atoms.

• There are two carbon atoms and two oxygen atoms

• Carbon dioxide is an element

Which of the following is a compound?

• Sulfur

• Oxygen

• Sulfur dioxide

• Argon

The Periodic Table organizes elements. Elements in the same vertical column (group) usually have:

• Similar melting points

• The same number of atoms

• Similar chemical properties

• Different colors

Which group of elements in the Periodic Table is known for being unreactive (inert)?

• Group 1

• Group 0

• Group 7

• Group 2

What happens to the melting points of Group 1 elements as you go down the group?

• Increases

• Decreases

What happens to the melting points of Group 0 elements as you go down the group?

• Increases

• Decreases

If a molecule of sulfur dioxide has one sulfur atom, how many oxygen atoms does it have?

• One

• Two

• Three

• Four

Which of these is the correct formula for sulfur dioxide?

• SO

• S2O

• SO2

• SO3