The process in which water is broken down during the light dependent reactions is called photolysis.
Reaction
H₂O-->1/2O₂+2e⁻+2p⁺
Atomic oxygen is released from the water molecule and reacts with another atomic oxygen to form molecular oxygen(O₂)
The hydrogen atom has only one proton and one electron so one hydrogen atom can be written as(e⁻+p⁺) in the water molecule 2 hydrogen atoms are present so there will be 2e⁻+2p⁺
Therefore the three things that result from photolysis are:
- oxygen
- protons
- electrons