The ultra-dense type of this entity has been suggested as a possible nuclear fuel for inertial confinement fusion.
The ultra-dense type of this entity has been suggested as a possible nuclear fuel for inertial confinement fusion. This entity is widely used as a solvent in NMR spectroscopy because it is invisible to a spectrometer tuned to protons. The difference in bond length and energy for this isotope, compared to its parent element, is larger than that of any other isotope. For 10 points, name this isotope found in higher than normal proportions in heavy water, which consists of a proton and a neutron.
The ultra-dense type of this entity has been suggested as a possible nuclear fuel for inertial confinement fusion.
{deuterium} (or {heavy hydrogen})