Understanding Particles: Atoms, Elements, Compounds, and Mixtures

What is the basic building block of all matter?

• Molecules

• Atoms

• Compounds

• Mixtures

Which of the following is an example of an element?

• Water

• Salt

• Air

• Gold

What defines a compound?

• A non-metal atom bonded with a metal

• Two or more elements chemically bonded

• A single type of atom

• A mixture of different substances

Which of the following is a compound?

• Oxygen

• Sodium chloride

• Nitrogen

• Iron

How do the properties of a compound compare to the elements that form it?

• They are completely different

• They are similar

• They are identical

• They are slightly different

What is a mixture?

• A single element

• Two or more elements or compounds not bonded

• A molecule of non-metals

• A compound of two elements

Which of the following is an example of a mixture?

• Gold

• Sodium chloride

• Air

• Water

What is a molecule?

• A mixture of metals

• Two or more non-metal atoms bonded

• A compound of metals and non-metals

• A single atom

Which of the following is a molecule that is also an element?

• O2

• NaCl

• CO2

• H2O

Where can you find additional resources for learning about particles?

• PhysicsToday.com

• PeriodicTable.com

• ChemistryWorld.com

• ScienceSurgery.com