Question

the simplest form of matter containing a characteristic set of properties is a(n)

atom

molecule

element

particle

Explanation:

To solve this, we analyze each option:

• An atom is the basic unit of an element but not the simplest form of matter with characteristic properties (elements are made of atoms with the same properties).
• A molecule is a group of atoms bonded together, so it's not the simplest form of matter (can be made of different or same atoms, but elements are simpler).
• An element is a pure substance made of only one type of atom, having a characteristic set of properties (like density, melting point, reactivity) and is the simplest form of matter that can't be broken down into simpler substances by chemical means.
• A particle is a general term and not specific to the simplest form of matter with characteristic properties.

So the correct answer is element.

Answer:

C. element