Hydrogen
Hydrogen is not only the lightest but the only known element with only 1 proton per atom.
Hydrogen is the lightest element.
That would be hydrogen!!
The lightest element with only one proton is 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 (atomic number 1) typically only has a single proton in its nucleus.
Hydrogen ion is the only element that has no neutron and one proton. That is why it is basically a proton.
Hydrogen typically has only a proton in its nucleus.
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.
Hydrogen.
The only element that has one proton and no neutrons is a hydrogen atom.
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.