The three obstacles I see for making this work with the hydrogen atoms/IONs is;

1.Storage: how do we store the hydrogen atoms/IONs so they can be useful?

2.Adding/Removing electrons. Shouldn’t be too difficult to figure out.

3. How to read the atom/ION to tell if it has one electron two electrons or no electrons. This shouldn’t be too difficult either.

If we can figure that out, I think we can turn hydrogen into a data storage medium.

I think the energy requirements would be less than silicon storage. If I remember my chemistry correctly, it doesn’t take much energy to get a hydrogen atom to turn into a positive or negative ION.