FTP, name this non-radioactive isotope of the lightest noble gas with 2 protons and 1 neutron in its nucleus.
When this compound is hyperpolarized, it can be used in NMR studies of the lung to diagnose emphysema and asthma, and like boron triflouride, it can be used in Geiger-Mueller counter to detect neutrons. It reacts with hydrogen in the fourth branch of the proton-proton chain, and Anthony Leggett won his 2003 Nobel for studying superfluidity in this compound; he noted that it achieves that state at 2 millikelvins because its nuclei are fermions. It is believed to be abundant in the upper regiolith of Earth's moon, but it is most often obtained from the beta decay of tritium. FTP, name this non-radioactive isotope of the lightest noble gas with 2 protons and 1 neutron in its nucleus.
When this compound is hyperpolarized, it can be used in NMR studies of the lung to diagnose emphysema and asthma, and like boron triflouride, it can be used in Geiger-Mueller counter to detect neutrons.
{Helium-3}