Answer:
Oxygen, nitrogen, chlorine, fluorine, bromine and iodine and hydrogen.
Step-by-step 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).