Kemija - 2021. jesen, 5.

${\mathrm{S}\mathrm{F}}_6\backslash mathrm\{SF\}\_\{6\}$

${\mathrm{N}\mathrm{H}}_3\backslash mathrm\{NH\}\_\{3\}$

${\mathrm{H}}_2\mathrm{O}\backslash mathrm\{H\}\_\{2\}\; \backslash mathrm\{O\}$

${\mathrm{B}\mathrm{e}\mathrm{C}\mathrm{l}}_2\backslash mathrm\{BeCl\}\_\{2\}$