Question

name: nitrite ion formula: no²⁻
name: nitrate ion formula: no³⁻

Explanation:

Step1: Recall ion - naming rules

In chemistry, the nitrite ion has one less oxygen atom than the nitrate ion. The correct formula for the nitrite ion is $NO_{2}^{-}$, and for the nitrate ion is $NO_{3}^{-}$. The given formula for the nitrite ion as $NO^{2 -}$ is incorrect, and the given formula for the nitrate ion as $NO^{3 -}$ is incorrect.

Step2: Correct the formulas

The correct formula for the nitrite ion is $NO_{2}^{-}$ and for the nitrate ion is $NO_{3}^{-}$.

Answer:

The correct formula for nitrite ion is $NO_{2}^{-}$ and for nitrate ion is $NO_{3}^{-}$.