\( \textrm {Na}^\textrm {I}\textrm {(C}_{2}{)}^\textrm {−I} \)\( \textrm {Na}_{2}\textrm {C}_{3} \)Není zaškrtnuto
\( \textrm {Na}^\textrm {I}\textrm {(C}_{2}{)}^\textrm {−II} \)\( \textrm {Na}_{2}\textrm {C}_{2} \)Není zaškrtnuto
\( \textrm {Na}^\textrm {I}\textrm {(C}_{3}{)}^\textrm {−II} \)\( \textrm {Na}_{2}\textrm {C}_{3} \)Není zaškrtnuto
\( \textrm {Na}^\textrm {II}\textrm {(C}_{2}{)}^\textrm {−II} \)\( \textrm {Na}_{3}\textrm {C}_{2} \)Není zaškrtnuto
