There are 7 elements that occur naturally as diatomic molecules. They are:

* Hydrogen (H₂)

* Nitrogen (N₂)

* Oxygen (O₂)

* Fluorine (F₂)

* Chlorine (Cl₂)

* Bromine (Br₂)

* Iodine (I₂)

These elements are all nonmetals and exist as diatomic molecules due to their strong bonding between two atoms of the same element.