Exchange of this substance is used to determine which amino acid residues of a protein are exposed, andin spectroscopy a lamp containing this substance is used to create a continuous spectrum in the UV range.
Exchange of this substance is used to determine which amino acid residues of a protein are exposed, andin spectroscopy a lamp containing this substance is used to create a continuous spectrum in the UV range.Reacting two atoms of this substance together produces four mega-electron volts of kinetic energy, and thissubstance formed after the universe cooled below 0.1 mega electron-volts a few minutes after the big bangin the first step of nucleosynthesis. In IR spectroscopy incorporation of this substance causes absorption toshift to lower frequencies. It is the first product of the proton-proton chain and is quickly consumed to formhelium. For 10 points, name this substance found in heavy water, an isotope of hydrogen with mass two.
Exchange of this substance is used to determine which amino acid residues of a protein are exposed, andin spectroscopy a lamp containing this substance is used to create a continuous spectrum in the UV range.
deuterium [or heavy hydrogen or deuteron]