Which group contains elements composed of diatomic molecules at stp

Diatomic elements are pure elements that form molecules consisting of two atoms bonded together. There are seven diatomic elements: hydrogen, nitrogen, oxygen, fluorine, chlorine, iodine, bromine.

Oxygen, nitrogen, chlorine, fluorine, bromine and iodine and hydrogen.

Explanation:

Diatomic molecules are the molecules which have same kind of two atoms in a molecule.

There are some molecules of elements which form diatomic molecules like

H₂

N₂

O₂

F₂

Cl₂

Br₂

I₂

However out of these Br₂ and I₂ are gases at slightly higher temperature than STP while all other are gases at STP (standard temperature and pressure).