Question

which of the following is a way in which elements and compounds are similar?
elements and compounds can both be broken down by physical means.
elements and compounds are pure substances.
elements and compounds are listed on the periodic table.
elements and compounds are both made up of different kinds of atoms.

Explanation:

• Elements cannot be broken down by physical means, so the first option is incorrect.
• Only elements are listed on the periodic table, so the third option is incorrect.
• Elements are made up of only one kind of atom, so the fourth option is incorrect.
• Both elements and compounds are pure substances.

Answer:

Elements and compounds are pure substances.