API Version: 1.0
Library Version: 0.27.0
Generated by gi-docgen 2026.1
gdouble ncm_c_mass_2H_u ( void )
Obtained from CIAAW commission of IUPAC, see [description][NcmC.description].
Type: gdouble
gdouble
Hydrogen-2’s mass over one atomic mass $m_\mathrm{2H}/m_\mathrm{A} = 2.01410177812$.