What is the word for an element that always exists as two atoms bonded together? (extension only)

The term for an element that always exists as two atoms bonded together is "diatomic." Diatomic molecules are molecules that consist of two atoms, which can be of the same or different chemical elements. The most common examples of diatomic elements include nitrogen (N₂), oxygen (O₂), hydrogen (H₂), and chlorine (Cl₂). These molecules exist in pairs due to their tendency to bond with themselves to achieve stability. In nature, many elements prefer to exist in this form rather than as individual atoms because the bond between the two atoms results in a lower energy state, making the molecule more stable. Diatomic elements are essential in various chemical reactions and play a significant role in both organic and inorganic chemistry.