Re: When the water used in photosynthesis splits, does the hydrogen atom become

>When the water used in photosynthesis splits, does the hydrogen 
>atom become a proton when it gives up its electron and becomes 
>ionized?  

Yes, the water is split to produce oxygen and 2 protons.


>I was told that hydrogen has no neutron, is this true?  

Yes. Hydrogen atom has one proton and one electron.
In simple terms, the proton forms the nucleus around which an electron 
circles.

>If this is the case, if a free proton and electron 
>are combined, does this automatically make hydrogen?

Well, technically yes, but it is not that simple. Hydrogen is
usually found as a diatomic molecule H2. That is, two atoms of
hydrogen are bonded together to form hydrogen molecule 
(which is a gas). Elemental hydrogen is unstable.