Which of the following describes the term 'molecule'?

The term 'molecule' is accurately described as a group of two or more atoms bonded together. This definition emphasizes that molecules can consist of atoms of the same element, such as O2 (oxygen gas), or different elements, such as H2O (water). The essential characteristic of a molecule is that these atoms are chemically bonded, forming a stable and distinct unit that exhibits particular properties and behaviors that are characteristic of that substance.

This understanding of molecules is crucial in chemistry, as they are the fundamental building blocks of compounds. The specific arrangement and types of atoms within a molecule determine its structure, function, and interactions with other molecules. Thus, identifying a molecule as a bonded group of atoms is a foundational concept when studying chemical interactions and reactions.