Hydrogen.
The lightest element with only one proton is hydrogen.
Hydrogen ion is the only element that has no neutron and one proton. That is why it is basically a proton.
Hydrogen (atomic number 1) typically only has a single proton in its nucleus.
Hydrogen is not only the lightest but the only known element with only 1 proton per atom.
Hydrogen is the lightest element.
There is only one proton in hydrogen.
Hydrogen
Only one element has single proton(proton is correct spelling). The element is Hydrogen. It has a single proton in it's nucleus and no neutrons. A single electron revolves around in s subshell of 1st energy shell( K shell). A Hydrogen atom which has lost it's electron can be said to be proton. No other element known has single proton in the nucleus (protons only reside in nucleus of atom) of it's atom.
Hydrogen has only one proton (atomic number 1). It has its nucleus and its single proton.
The only element without any neutrons is Hydrogen-1, which has a lone proton.
There is no ELEMENT which contains no neutrons HOWEVER there is an isotope of hydrogen called protium which is a single proton surrounded by a single electron.
Yes, because acid-based reactions require either donating a proton (acid) or accepting a proton (base). Since hydrogen in the only element with one proton and no neutron it is the only element transferred in this type of reaction.