7.6A Atoms, Molecules, and Compounds

Open Ended

Why is it important to understand the differences between elements and compounds when studying chemistry?

Multiple Choice

Which of the following best describes a compound?

• A substance made of only one type of atom

• A substance made of two or more types of atoms chemically bonded together

• A mixture of different molecules

• A single atom with a unique chemical symbol

Open Ended

What are the three phases into which matter is commonly divided?

Multiple Choice

Which of the following best describes the difference between an atom and a molecule, as illustrated by carbon (C) and carbon dioxide (CO₂)?

• An atom is a single particle, while a molecule is made up of two or more atoms bonded together.

• An atom is always larger than a molecule.

• A molecule is always a pure element, while an atom is always a compound.

• Atoms and molecules are the same thing.

Open Ended

How has your understanding of atoms, molecules, and compounds changed after this lesson?

Multiple Choice

What is one key difference between elements and compounds in terms of their atomic structure?

• Elements are made of only one type of atom, while compounds are made of two or more types of atoms.

• Elements can be broken down into simpler substances, while compounds cannot.

• Compounds are found on the periodic table, while elements are not.

• Elements always have complex chemical formulas, while compounds do not.