Which of the following is NOT true about a molecule?

A molecule is defined as a group of two or more atoms bonded together, and these atoms can be of the same element or different elements, which aligns with the other statements provided. The fact that a molecule can consist of different elements illustrates the diversity of molecules such as water (H₂O) or carbon dioxide (CO₂).

The assertion that a molecule is always charged is incorrect. In fact, most molecules are neutral, meaning they have no overall charge. While there are charged species known as ions, they are not classified as molecules. The correct characterization of a molecule includes its composition and the nature of its bonds, but it does not imply that the molecule carries a charge.

Additionally, molecules are held together by chemical bonds, which can be covalent or ionic, and this bonding is essential for the stability and formation of the molecule. Thus, the point about chemical bonds further reinforces the understanding of what constitutes a molecule.