octahedral

tetrahedral

linear

square pyramidal

$\mathrm{NH}_2^{-}>\mathrm{NH}_3>\mathrm{NH}_4^{+}$

$\mathrm{NH}_4^{+}>\mathrm{NH}_3>\mathrm{NH}_2^{-}$

$\mathrm{NH}_3>\mathrm{NH}_2^{-}>\mathrm{NH}_4^{+}$

$\mathrm{NH}_3>\mathrm{NH}_4^{+}>\mathrm{NH}_2^{-}$

$\left(\mathrm{BCl}_3: s p^3\right) ;\left(\mathrm{PCl}_5: s p^3 d^2\right) ;\left(\mathrm{NH}_3: s p^2\right)$ and $\left(\mathrm{SF}_6: s p^3 d\right)$

$\left(\mathrm{BCl}_3: s p^2\right) ;\left(\mathrm{PCl}_5: s p^3 d\right) ;\left(\mathrm{NH}_3: s p^3\right)$ and $\left(\mathrm{SF}_6: s p^3 d^2\right)$

$\left(\mathrm{BCl}_3: s p^2\right) ;\left(\mathrm{PCl}_5: s p^3 d^2\right) ;\left(\mathrm{NH}_3: s p^3\right)$ and $\left(\mathrm{SF}_6: s p^3 d\right)$

$\left(\mathrm{BCl}_3: s p^3\right) ;\left(\mathrm{PCl}_5: s p^3 d\right) ;\left(\mathrm{NH}_3: s p^2\right)$ and $\left(\mathrm{SF}_6: s p^3 d^2\right)$

$2 p_x$ of $\mathrm{C}_1$ and $2 p_y$ of $\mathrm{C}_2$

$2 p_z$ of $\mathrm{C}_1$ and $2 p_y$ of $\mathrm{C}_2$

$2 p_x$ of $C_1$ and 2 s of $C_2$

$2 p_z$ of $C_1$ and $2 p_z$ of $C_2$