Answer: There is only 1 proton in Hydrogen.
Explanation: If you look at the periodic table of elements, you'll see that Hydrogen is "1".
That "1" is the Atomic Number of the atom. Hydrogen will always have 1 proton, otherwise its atomic identity will be changed.
In case you ever get confused in the future, look at the atomic number! It can be found above the symbol for the atom, on the periodic table of elements. The atomic number will ALWAYS be the number of protons in the atom!
Hope this helps you! :)