$H_3PO_4$ and $HCl$

$H_3PO_3$ and $HCl$

$H_4P_2O_7$ and $HCl$

$H_3PO_2$ and $HCl$

${\rm{N}}{{\rm{H}}_{{\rm{4}}\,}}{\rm{CI,}}\,\,{{\rm{N}}_{\rm{2}}}{\rm{,}}\,\,{\rm{NO,}}\,\,{\rm{HN}}{{\rm{O}}_{\rm{3}}}$

${\rm{HN}}{{\rm{O}}_{\rm{3}}}{\rm{,}}\,\,{\rm{NO,}}\,\,{{\rm{N}}_{\rm{2}}}{\rm{,}}\,{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{CI}}\,$

${\rm{HN}}{{\rm{O}}_{\rm{3}}}{\rm{,}}\,\,{\rm{N}}{{\rm{H}}_{{\rm{4}}\,}}{\rm{CI,}}\,\,{\rm{NO,}}\,{{\rm{N}}_{\rm{2}}}$

$\,{\rm{HN}}{{\rm{O}}_{\rm{3}}}{\rm{,}}\,\,{\rm{NO,}}\,\,{\rm{N}}{{\rm{H}}_{{\rm{4}}\,}}{\rm{CI,}}\,{{\rm{N}}_{\rm{4}}}$

$O^{2-} > F^- > Na^+ > Mg^{2+}$

$F^- > O^{2-} > Mg^{2+} > Na^+$

$Na^+ > Mg^{2+} > F^- > O^{2-}$

$Mg^{2+} > Na^+ > O^{2-} > F^-$

Forms pentoxides

Exists as a diatomic molecule

Relatively inert at room temperature

Essential component of proteins

${\left[ {Fe{{\left( {{H_2}O} \right)}_5}\left( {NO} \right)} \right]^{2 + }}$

${\left[ {Fe{{\left( {{H_2}O} \right)}_5}\left( {NO} \right)} \right]^{3 + }}$

${\left[ {Fe{{\left( {{H_2}O} \right)}_4}{{\left( {NO} \right)}_2}} \right]^ + }$

${\left[ {Fe{{\left( {{H_2}O} \right)}_6}} \right]^{3 + }}$

${{\rm{P}}_2}{{\rm{O}}_5}$

${{\rm{N}}_2}{{\rm{O}}_3}$

${\rm{NO}}$

${{\rm{N}}_2}{{\rm{O}}_5}$

Triple bond present between phosphorus atoms.

$P\pi {\rm{ - }}P\pi$ Bonding is weak.

$P\pi {\rm{ - }}P\pi$ Bonding is strong.

Multiple bonds from easily.

Nitrogen

Phosphorus

Arsenic

Bismuth

Copper nitrate and Hydrogen

Copper nitrate and Nitrogen

Copper nitrate, Nitric oxide and water

Copper nitrate, Nitrogen dioxide and water

PCl₅ exists as [PCl₄]⁺[PCl₆]⁻ in solid state

PCl₅ is a covalent molecule in gaseous and liquid state

PCl₅ fumes in moist air

PCl₅ does not hydrolyze

One P=O bond

Two P-H bonds

One P-OH bond

Tetrahedral geometry