21. The activity of the Trento lab was mainly focused on opto-thermal spectroscopy and atomic hydrogen scattering experiments. 22. In the presence of the hot filament, water reacts with tungsten forming tungsten trioxide and atomic hydrogen . 23. Atomic hydrogen is a minor atmospheric constituent.24. When the helium is vaporized, the atomic hydrogen would be released and combine back to molecular hydrogen. 25. As a solute, atomic hydrogen does exhibit electronic delocalisation, though only about half as strong as most metals. 26. To keep the atomic hydrogen from forming hydrogen molecules, the atoms were spin-polarized by a 7 tesla magnet. 27. FeH can also be produced by the interaction of Iron pentacarbonyl vapour and atomic hydrogen in a microwave discharge. 28. In chemistry, a "'hydron "'is the general name for a cationic form of atomic hydrogen , represented with the symbol. 29. The spiral arms of the galaxy contain many areas of ionized atomic hydrogen gas, more so towards the center. 30. Such molecules were discovered to make up about half of the interstellar matter, the rest being mainly atomic hydrogen .
