Even small movements of hydrogen, shown in yellow, were found to cause large energy shifts in the attached iron atoms, shown in silver, which could be of interest in creating novel chemical reactions.

Scientists at ORNL used neutrons to see hydrogen atoms, flashing in green, ending a decades-long debate about an enzyme that could target aggressive cancers through inhibitor design. Disclaimer ...

Isotopes are forms of an element that have the same number of protons but different numbers of neutrons. There are three isotopes of hydrogen: hydrogen, deuterium (hydrogen-2) and tritium ...