Ionization breaks the hydrogen atom down into its positive ions (hydrogen protons) and negative ions (electrons). Both types of ions are naturally drawn to the cathode situated on the other side ...

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

And the two is because for every one oxygen atom there are two hydrogen atoms in water. And if we were to draw the molecule, it would look a little bit like this. So we've got our oxygen atom and ...