6.5 Elements and Compounds

While elements and compounds are related, they are different. Unlike elements, compounds - 

• consist of only one type of atom
• are the smallest form of a particle
• exist only as pure substances
• are made of at least two types of matter

• Formula
• Name
• Symbol
• Compound

Which of the following is a compound?

• Water
• Oxygen
• Chlroine
• Aluminum 

The smallest particle of any particular type of matter is known by which of the following terms?

• Element
• Chemical
• Atom
• Compound

How many different elements are in the following compound?
H₂COOHN

• 2
• 3
• 4
• 6

Provided is a list of five different substances. How many of these substances are elements?

• 2
• 3
• 4
• 5

How many elements are in the compound Fe₂O₃?

• 0
• 1
• 2
• 3

This table has 2 columns of different kinds of matter. What is the best label for the 2nd column?

• Atoms
• Pure substances
• Compounds
• Mixtures

Element or Compound?
CO₂

• Element 
• Compound
• Neither

An element has only one capital letter.

• True
• False