wouldn’t that be a hydrogen atom?
Two atoms make up the H2 molecule.
You pretty much never find single hydrogen atoms. The binding energy is so much lower in the diatomic state that atomic hydrogen would rip more out of water molecules if it found any.
H2, most likely.
Hydrogen atoms don’t exist by themselves in ordinary mature. Two H atoms combine to make the smallest occurring ordinary matter
No, it’s a hydrogen molecule. Free hydrogen
atoms don’t exist (at least under any conditions likely to be encountered on earth, with the possible exception of a hydrogen bomb explosion or a hypothetical fusion reactor). Hydrogen molecules are two hydrogen atoms covalently bonded to form one hydrogen molecule. On earth, hydrogen molecules generally don’t occur naturally. Most hydrogen atoms are bound to oxygen to form water. (Some are bound to carbon, nitrogen, sulfur and phosphorus atoms in various organic compounds). Hydrogen gas is formed chemically via reaction of certain metals with water, or more commonly by electrolysis. The freed hydrogen atoms quickly bond in pairs and we never observe free atoms, but diatomic molecules of hydrogen.