However, it's important to note that this is the mass of a hydrogen-1 atom, which is the most common isotope of hydrogen. There are also other isotopes of hydrogen, like deuterium and tritium, which have different masses due to the presence of neutrons in their nucleus.

Here are some other ways to express the mass of a hydrogen atom:

* Atomic mass unit (amu): 1.007825 amu

* Dalton (Da): 1.007825 Da

* Grams per mole (g/mol): 1.00794 g/mol

It's important to specify which isotope you are referring to when discussing the mass of a hydrogen atom.