Electrons are shared equally between the three nitrogen atoms. The overall charge on nitrate ion ( $NO _3^{-}$ion) is $-1$ which will be shared betwee

$\begin{matrix} ^{-2/3}O\cdots \overset{+}{\mathop{N}}\,\cdots {{O}^{-2/3}} \\ \vdots \\ \,\,\,\,\,\,\,\,\,{{O}^{-2/3}} \\ \end{matrix}$

Electrons are shared equally between the three nitrogen atoms. The overall charge on nitrate ion ( $NO _3^{-}$ion) is $-1$ which will be shared between $3 O$ - atoms. The structure $(C)$ clearly represents the correct resonance structure of nitrate ion.

4.Chemical Bonding and Molecular StructureMedium

नाइट्रेट आयन का अनुनादी संकर है

A
$\begin{matrix}
^{-1/2}O\underline{\overline{\cdots }}N\underline{\overline{\cdots }}{{O}^{-1/2}} \\
|\vdots | \\
\,\,\,\,\,\,\,\,\,{{O}^{-1/2}} \\
\end{matrix}$
B
$\begin{matrix} ^{-2/3}O\cdots N\cdots {{O}^{-2/3}} \\
\vdots \\
\,\,\,\,\,\,\,\,\,{{O}^{-2/3}} \\
\end{matrix}$
C
$\begin{matrix}
^{-2/3}O\cdots \overset{+}{\mathop{N}}\,\cdots {{O}^{-2/3}} \\
\vdots \\
\,\,\,\,\,\,\,\,\,{{O}^{-2/3}} \\
\end{matrix}$
D
$\begin{matrix}
^{-1/3}O\underline{\overline{\cdots }}N\underline{\overline{\cdots }}{{O}^{-1/3}} \\
|\vdots | \\
\,\,\,\,\,\,\,\,\,{{O}^{-1/3}} \\
\end{matrix}$