a Proton. A hydrogen-1 atom (the most abundant isotope of hydrogen) has no neutrons and only 1 proton. So the atom is 1 proton and 1 electron. So the ion, when the electron is removed, the entire ion is just 1 single proton.
Hydrogen
Hydrogen
where is proton in atom
The answer for a hydrogen atom would be about 100 meters across a proton is about 1/10,000 th of the diameter of a hydrogen atom.
The atomic number is equivalent to its number of protons. One proton in atom is its atomic number is 1. Hydrogen is the only atom with one proton.
At least two: 1 proton + 1 electron = Hydrogen atom
You can find a proton (+) in the center of a atom.
1 proton and 1 neutron
1 proton and 1 electron
Removing only one electron from any atom will always make its charge +1, as there is only one unbalanced proton in the atom.
Hydrogen always has 1 proton. If it had two, it would then become Helium. The fact that it is a Hydrogen ion, just means that it is not electrically neutral. Since the proton is what defines the atom, the Hydrogen atom must be missing an electron, leaving the atom with a net positive charge of +e.