Q: What is the simplest unit that has the fundamental chemical properties of an element?


Read this paragraph and choose the correct option from the provided answers:

Covalent Molecules and Compounds Just as an atom is the simplest unit that has the fundamental chemical properties of an element, a molecule is the simplest unit that has the fundamental chemical properties of a covalent compound. Some pure elements exist as covalent molecules. Hydrogen, nitrogen, oxygen, and the halogens occur naturally.

 Choices:

- neutron

- nucleus

- cell

- atom


A:
atom